CVE-2025-6226 (GCVE-0-2025-6226)

Vulnerability from cvelistv5 – Published: 2025-07-18 08:48 – Updated: 2025-08-07 09:53
VLAI?
Summary
Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 10.5.0 , ≤ 10.5.6 (semver)
Affected: 10.8.0 , ≤ 10.8.1 (semver)
Affected: 10.7.0 , ≤ 10.7.3 (semver)
Affected: 9.11.0 , ≤ 9.11.16 (semver)
Unaffected: 10.9.0
Unaffected: 10.5.8
Unaffected: 10.8.2
Unaffected: 10.7.4
Unaffected: 9.11.17
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Credits
Dawid Kulikowski (daw10)
Show details on NVD website
To clipboard 

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Sightings

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Nomenclature

  • 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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