CVE-2025-53910

Name: CVE-2025-53910
Creator: NVD / NIST
Published: 2025-08-11T19:15:29.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2025-53910 is a medium-severity vulnerability rated 4/10 on the CVSS scale. Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.

Metrics

CVSS 3.1

4/10

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

EPSS Probability

0.18%

8.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Mattermost	Confluence	< 1.5.0

References

https://mattermost.com/security-updatesVendor Advisory

Timeline

Published: Aug 11, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-53910?

How severe is CVE-2025-53910?

CVE-2025-53910 has a CVSS score of 4/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2025-53910?

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-2025-53910?

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

Scan your code now

Source: NVD / NIST