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CVE-2025-50738

Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs

9.8 CriticalPublic exploitFix available

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.42%Up 2.4 points since Jul 30, 2025
90%50%10%1%

What each source reports

CVE List Score used 9.8

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Record
CVE-2025-50738
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-200
Updated
2026-11-02
EUVDEUVD-2025-23004 9.8

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Record
EUVD-2025-23004
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-hfcf-79gh-f3jc 5.2

Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Record
GHSA-hfcf-79gh-f3jc
CVSS 4.0
5.2 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Weakness
CWE-79, CWE-200
Updated
2026-11-02
NVD 9.8

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Record
CVE-2025-50738
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-200
Updated
2026-11-02
OSV 9.8

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Record
CVE-2025-50738
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-hfcf-79gh-f3jc 5.2

Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs

The Memos application, up to version v0.24.3, allows for the embedding of markdown images with arbitrary URLs. When a user views a memo containing such an image, their browser automatically fetches the image URL without explicit user consent or interaction beyond viewing the memo. This can be exploited by an attacker to disclose the viewing user's IP address, browser User-Agent string, and potentially other request-specific information to the attacker-controlled server, leading to information disclosure and user tracking.

Record
GHSA-hfcf-79gh-f3jc
CVSS 4.0
5.2 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Weakness
CWE-200, CWE-79
Updated
2026-11-02
OSVGO-2025-3831 No score

Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs in github.com/usememos/memos

Memos has Cross-Site Scripting (XSS) Vulnerability in Image URLs in github.com/usememos/memos

Record
GO-2025-3831
Updated
2026-11-02
OSVopenSUSE-SU-2025:15434-1 No score

govulncheck-vulndb-0.0.20250811T192933-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20250811T192933-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15434-1
Updated
2026-11-02
OSVSUSE-SU-2025:02912-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20250814T182633 2025-08-14T18:26:33Z (jsc#PED-11136)

    Go CVE Numbering Authority IDs added or updated with aliases:

    • GO-2025-3765 CVE-2024-44906 GHSA-h4h6-vccr-44h2
    • GO-2025-3829 CVE-2025-54410 GHSA-4vq8-7jfc-9cvp

  • Update to version 0.0.20250811T192933 2025-08-11T19:29:33Z (jsc#PED-11136)

    Go CVE Numbering Authority IDs added or updated with aliases:

    • GO-2025-3822 CVE-2025-53942 GHSA-9g4j-v8w5-7x42
    • GO-2025-3829 CVE-2025-54410 GHSA-4vq8-7jfc-9cvp
    • GO-2025-3830 CVE-2025-54388 GHSA-x4rx-4gw3-53p4
    • GO-2025-3831 CVE-2025-50738 GHSA-hfcf-79gh-f3jc
    • GO-2025-3832 CVE-2021-21411 GHSA-652x-m2gr-hppm
    • GO-2025-3833 CVE-2025-54576 GHSA-7rh7-c77v-6434
    • GO-2025-3834 CVE-2025-54424 GHSA-8j63-96wh-wh3j
    • GO-2025-3835 CVE-2025-54386 GHSA-q6gg-9f92-r9wg
    • GO-2025-3836 CVE-2025-6037 GHSA-6c5r-4wfc-3mcx
    • GO-2025-3837 CVE-2025-5999 GHSA-6h4p-m86h-hhgh
    • GO-2025-3838 CVE-2025-6000 GHSA-mr4h-qf9j-f665
    • GO-2025-3839 CVE-2025-6011 GHSA-mwgr-84fv-3jh9
    • GO-2025-3840 CVE-2025-6004 GHSA-qgj7-fmq2-6cc4
    • GO-2025-3841 CVE-2025-6014 GHSA-qv3p-fmv3-9hww
    • GO-2025-3842 CVE-2025-6015 GHSA-v6r4-35f9-9rpw
    • GO-2025-3843 CVE-2025-8341 GHSA-3c93-92r7-j934
    • GO-2025-3844 CVE-2025-53534 GHSA-fm3m-jrgm-5ppg
    • GO-2025-3845 CVE-2025-54801 GHSA-qx2q-88mx-vhg7
    • GO-2025-3847 CVE-2025-54799 GHSA-q82r-2j7m-9rv4
    • GO-2025-3848 CVE-2025-6013 GHSA-7rx2-769v-hrwf
    • GO-2025-3851 CVE-2025-44779 GHSA-93jv-pvg8-hf3v
    • GO-2025-3852 CVE-2025-7195 GHSA-856v-8qm2-9wjv
    • GO-2025-3853 CVE-2025-55000 GHSA-f7c3-mhj2-9pvg
    • GO-2025-3854 CVE-2025-54999 GHSA-hh28-h22f-8357
    • GO-2025-3855 CVE-2025-54998 GHSA-j3xv-7fxp-gfhx
    • GO-2025-3856 CVE-2025-55003 GHSA-rxp7-9q75-vj3p
    • GO-2025-3857 CVE-2025-54996 GHSA-vf84-mxrq-crqc
    • GO-2025-3858 CVE-2025-54997 GHSA-xp75-r577-cvhp
    • GO-2025-3859 CVE-2025-55001 GHSA-2q8q-8fgw-9p6p

  • Update to version 0.0.20250807T150727 2025-08-07T15:07:27Z (jsc#PED-11136)

    Go CVE Numbering Authority IDs added or updated with aliases:

    • GO-2025-3849 CVE-2025-47907
Record
SUSE-SU-2025:02912-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/usememos/memos
Go
 before 0.24.4
0.24.4
govulncheck-vulndb
SUSE:Linux Enterprise Module for Package Hub 15 SP6
 before 0.0.20250814T182633-150000.1.98.1
0.0.20250814T182633-150000.1.98.1
govulncheck-vulndb
openSUSE:Leap 15.6
 before 0.0.20250814T182633-150000.1.98.1
0.0.20250814T182633-150000.1.98.1
govulncheck-vulndb
openSUSE:Tumbleweed
 before 0.0.20250811T192933-1.1
0.0.20250811T192933-1.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubtiemio/CVE-2025-50738-PoC2026-02-22

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub

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

In short

CVE-2025-50738 is a critical vulnerability (CVSS 9.8) in Usememos Memos, published July 29, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.42%, the 84th percentile. Fixed in github.com/usememos/memos 0.24.4.

References

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