CVE-2026-6062 (GCVE-0-2026-6062)

Vulnerability from cvelistv5 – Published: 2026-06-22 13:40 – Updated: 2026-06-22 15:41
VLAI
Title
IDOR in Jira plugin subscription edit endpoint
Summary
Mattermost versions 11.7.x <= 11.7.0, 11.6.x <= 11.6.2, 11.5.x <= 11.5.5, 10.11.x <= 10.11.17 Fail to validate channel ownership of an existing subscription before applying edits which allows an authenticated attacker to hijack subscriptions from channels they have no access to via a crafted PUT request to the subscription edit endpoint.. Mattermost Advisory ID: MMSA-2026-00650
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
URL Tags
https://mattermost.com/security-updates vendor-advisory
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 11.7.0 , ≤ 11.7.0 (semver)
Affected: 11.6.0 , ≤ 11.6.2 (semver)
Affected: 11.5.0 , ≤ 11.5.5 (semver)
Affected: 10.11.0 , ≤ 10.11.17 (semver)
Unaffected: 11.8.0
Unaffected: 11.7.1
Unaffected: 11.6.3
Unaffected: 11.5.6
Unaffected: 10.11.18
Create a notification for this product.
Credits
0hmz
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
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  • 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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