All vulnerabilities

Servers and applications

CVE-2024-39807

Mattermost versions 9.5.x <= 9.5.5 and 9.8.0 fail to properly sanitize the recipients of a webhook event which allows an attacker monitoring webhook events to retrieve the channel IDs of archived or restored channels.

Severity
Medium 5.3
Published
3 Jul 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.5.6, 9.8.1
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost
  • From 9.5.0 before 9.5.6
  • From 9.8.0 before 9.8.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-39807
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-39807