PT-2024-28677 · Mattermost · Mattermost

Harrison Healey · Published 2024-07-03 · Updated 2024-07-05 · CVE-2024-39807

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Mattermost versions 9.5.x through 9.5.5 Mattermost version 9.8.0

Description The issue arises from the improper sanitization of recipients of a webhook event, allowing an attacker who is monitoring these events to obtain the channel IDs of archived or restored channels.

Recommendations For Mattermost versions 9.5.x through 9.5.5, update to a version later than 9.5.5 to resolve the issue. For Mattermost version 9.8.0, update to a version later than 9.8.0 to resolve the issue.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2024-39807

Affected Products

Mattermost

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2024-39807 · Security Note
• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-39807 · Vendor Advisory