CVE-2025-43926

Name: CVE-2025-43926
Creator: NVD / NIST
Published: 2025-05-08T16:15:26.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2025-43926 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An issue was discovered in Znuny through 6.5.14 and 7.x through 7.1.6. Custom AJAX calls to the AgentPreferences UpdateAJAX subaction can be used to set user preferences with arbitrary keys. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

An issue was discovered in Znuny through 6.5.14 and 7.x through 7.1.6. Custom AJAX calls to the AgentPreferences UpdateAJAX subaction can be used to set user preferences with arbitrary keys. When fetching user data via GetUserData, these keys and values are retrieved and given as a whole to other function calls, which then might use these keys/values to affect permissions or other settings.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.20%

10.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Znuny	Znuny	<= 6.5.14
Znuny	Znuny	>= 7.0.1, <= 7.1.6

References

https://www.znuny.org/en/advisories/zsa-2025-07Vendor Advisory
https://znuny.comProduct

Timeline

Published: May 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-43926?

How severe is CVE-2025-43926?

CVE-2025-43926 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2025-43926?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-43926?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST