PT-2024-20554 · Mattermost · Mattermost

Vultza · Published 2024-02-09 · Updated 2024-06-05 · CVE-2024-24776

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Mattermost versions prior to v8.1.8

Description Mattermost fails to check the required permissions in the "POST /api/v4/channels/stats/member count" API endpoint, resulting in channel member counts being leaked to a user without permissions.

Recommendations For versions prior to v8.1.8, update to version v8.1.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the "POST /api/v4/channels/stats/member count" API endpoint until a patch is available.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BIT-MATTERMOST-2024-24776

CVE-2024-24776

GHSA-R833-W756-H5P2

GO-2024-2566

Affected Products

Mattermost

References · 13

• https://osv.dev/vulnerability/GHSA-r833-w756-h5p2 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/GO-2024-2566 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-24776 · Security Note
• https://osv.dev/vulnerability/CVE-2024-24776 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mattermost-2024-24776 · Vendor Advisory
• https://github.com/mattermost/mattermost · Note
• https://t.me/cvenotify/70823 · Telegram Post
• https://github.com/advisories/GHSA-r833-w756-h5p2 · Note
• https://twitter.com/VulmonFeeds/status/1756010452142715010 · Twitter Post
• https://twitter.com/CVEnew/status/1755973470767161680 · Twitter Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-24776 · Note
• https://t.me/cvenotify/70850 · Telegram Post