CVE-2025-14350 (GCVE-0-2025-14350)

Vulnerability from cvelistv5 – Published: 2026-02-16 12:05 – Updated: 2026-02-17 17:06
VLAI?
Title
Information disclosure via channel mentions in posts
Summary
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate team membership when processing channel mentions which allows authenticated users to determine the existence of teams and their URL names via posting channel shortlinks and observing the channel_mentions property in the API response. Mattermost Advisory ID: MMSA-2025-00563
Severity ?
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 11.1.0 , ≤ 11.1.2 (semver)
Affected: 10.11.0 , ≤ 10.11.9 (semver)
Affected: 11.2.0 , ≤ 11.2.1 (semver)
Unaffected: 11.3.0
Unaffected: 11.1.3
Unaffected: 10.11.10
Unaffected: 11.2.2
Create a notification for this product.
Credits
Harrison Healey
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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