CVE-2024-39839 (GCVE-0-2024-39839)

Vulnerability from cvelistv5 – Published: 2024-08-01 14:05 – Updated: 2024-08-01 18:04
VLAI?
Title
Remote username set to an arbitrary string by remote user
Summary
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.
Severity ?
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 9.9.0
Affected: 9.5.0 , ≤ 9.5.6 (semver)
Affected: 9.7.0 , ≤ 9.7.5 (semver)
Affected: 9.8.0 , ≤ 9.8.1 (semver)
Unaffected: 9.10.0
Unaffected: 9.9.1
Unaffected: 9.5.7
Unaffected: 9.7.6
Unaffected: 9.8.2
Create a notification for this product.
Credits
Juho Forsén
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 confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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