CVE-2026-50592
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in ...
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in
AdminCommunicationLog (aka the communication log administration view).
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
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in
AdminCommunicationLog (aka the communication log administration view).
- Record
CVE-2026-50592- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-34783
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in
AdminCommunicationLog (aka the communication log administration view).
- Record
EUVD-2026-34783- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fjc3-384j-842g
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in ...
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in
AdminCommunicationLog (aka the communication log administration view).
- Record
GHSA-fjc3-384j-842g- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in
AdminCommunicationLog (aka the communication log administration view).
- Record
CVE-2026-50592- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-50592
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in AdminCommunicationLog (aka the communication log administration view).
- Record
DEBIAN-CVE-2026-50592- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-50592
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in AdminCommunicationLog (aka the communication log administration view).
- Record
UBUNTU-CVE-2026-50592- CVSS 3.1
- 6.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
znunyDebian:12 |
All versions, plus listed versions 6.3.2-36.3.3-16.3.3-1~bpo11+16.3.4-16.3.4-1~bpo11+1 Show 45 moreShow less6.4.2-16.4.2-1~bpo11+16.4.2-26.4.3-16.4.3-1~bpo11+16.4.4-16.4.5-16.4.5-1~bpo11+16.4.5-26.5.1-16.5.10-16.5.10-1~bpo12+16.5.11-16.5.11-1~bpo12+16.5.13-16.5.14-16.5.14-1~bpo12+16.5.15-16.5.15-26.5.15-2~bpo12+16.5.16-16.5.18-16.5.18-1~bpo13+16.5.19-16.5.20-16.5.21-16.5.22-16.5.22-1~bpo13+16.5.23-16.5.23-1~bpo13+16.5.24-16.5.24-1~bpo13+16.5.25-16.5.25-1~bpo13+16.5.3-16.5.3-1~bpo12+16.5.4-16.5.4-1~bpo12+16.5.5-16.5.5-1~bpo12+16.5.6-16.5.6-1~bpo12+16.5.8-16.5.8-1~bpo12+16.5.9-1 |
None known |
znunyDebian:13 |
All versions, plus listed versions 6.3.2-36.3.3-16.3.3-1~bpo11+16.3.4-16.3.4-1~bpo11+1 Show 45 moreShow less6.4.2-16.4.2-1~bpo11+16.4.2-26.4.3-16.4.3-1~bpo11+16.4.4-16.4.5-16.4.5-1~bpo11+16.4.5-26.5.1-16.5.10-16.5.10-1~bpo12+16.5.11-16.5.11-1~bpo12+16.5.13-16.5.14-16.5.14-1~bpo12+16.5.15-16.5.15-26.5.15-2~bpo12+16.5.16-16.5.18-16.5.18-1~bpo13+16.5.19-16.5.20-16.5.21-16.5.22-16.5.22-1~bpo13+16.5.23-16.5.23-1~bpo13+16.5.24-16.5.24-1~bpo13+16.5.25-16.5.25-1~bpo13+16.5.3-16.5.3-1~bpo12+16.5.4-16.5.4-1~bpo12+16.5.5-16.5.5-1~bpo12+16.5.6-16.5.6-1~bpo12+16.5.8-16.5.8-1~bpo12+16.5.9-1 |
None known |
znunyDebian:14 |
before 6.5.21-1, plus listed versions 6.3.2-36.3.3-16.3.3-1~bpo11+16.3.4-16.3.4-1~bpo11+1 Show 37 moreShow less6.4.2-16.4.2-1~bpo11+16.4.2-26.4.3-16.4.3-1~bpo11+16.4.4-16.4.5-16.4.5-1~bpo11+16.4.5-26.5.1-16.5.10-16.5.10-1~bpo12+16.5.11-16.5.11-1~bpo12+16.5.13-16.5.14-16.5.14-1~bpo12+16.5.15-16.5.15-26.5.15-2~bpo12+16.5.16-16.5.18-16.5.18-1~bpo13+16.5.19-16.5.20-16.5.3-16.5.3-1~bpo12+16.5.4-16.5.4-1~bpo12+16.5.5-16.5.5-1~bpo12+16.5.6-16.5.6-1~bpo12+16.5.8-16.5.8-1~bpo12+16.5.9-16.5.9-1~bpo12+1 |
6.5.21-1 |
otrs2Ubuntu:16.04:LTS |
All versions, plus listed versions 4.0.10-15.0.1-15.0.1-25.0.2-15.0.3-15.0.5-15.0.6-15.0.7-1 |
None known |
otrs2Ubuntu:18.04:LTS |
All versions, plus listed versions 5.0.23-15.0.24-16.0.1-16.0.2-16.0.3-16.0.4-16.0.5-1 |
None known |
otrs2Ubuntu:20.04:LTS |
All versions, plus listed versions 6.0.20-16.0.23-26.0.24-16.0.25-16.0.25-26.0.25-36.0.26-1 |
None known |
otrs2Ubuntu:22.04:LTS |
All versions, plus listed versions 6.0.32-66.1.2-16.2.1-16.2.2-2 |
None known |
znunyUbuntu:24.04:LTS |
All versions, plus listed versions 6.5.3-16.5.4-16.5.5-16.5.6-1 |
None known |
znunyUbuntu:25.10 |
All versions, plus listed versions 6.5.14-16.5.15-2 |
None known |
znunyUbuntu:26.10 |
All versions, plus listed versions 6.5.18-16.5.20-16.5.21-16.5.22-16.5.23-1 |
None known |
znunyUbuntu:26.04:LTS |
All versions, plus listed versions 6.5.15-26.5.18-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-50592 is a medium vulnerability (CVSS 6.4) in Znuny, published June 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.15%, the 4th percentile. Fixed in znuny 6.5.21-1.
References
Left out here: 2 versions. The JSON record has them.