Read the docs
TI-2024-33497 Aliases CVE-2024-50052GHSA-g376-m3h3-mj4r

Arbitrary post deletion via Playbooks /ignore-thread endpoint

Priority LOW 20CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

Mattermost versions 9.10.x <= 9.10.2, 9.11.x <= 9.11.1, 9.5.x <= 9.5.9 fail to check that the origin of the message in an integration action matches with the original post metadata which allows an authenticated user to delete an arbitrary post.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00278 20th percentileScored 2026-11-07
Fix Fixed Mattermost (Mattermost): 10.0.0, 9.10.3, 9.11.2 +1github.com/mattermost/mattermost/server/v8 (Go): 8.0.0-20240926115259-20ed58906adc

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MattermostMattermost9.10.0 – 9.10.2; 9.11.0 – 9.11.1; 9.5.0 – 9.5.910.0.0, 9.10.3, 9.11.2, 9.5.10Patch availableCNA
—github.com/mattermost/mattermost/server/v8 (Go)before 8.0.0-20240926115259-20ed58906adc8.0.0-20240926115259-20ed58906adcPatch availableGHSA-g376-m3h3-mj4r
  • Mattermost VendorMattermost Affected 9.10.0 – 9.10.2; 9.11.0 – 9.11.1; 9.5.0 – 9.5.9 Fixed in 10.0.0, 9.10.3, 9.11.2, 9.5.10 Patch available CNA
  • github.com/mattermost/mattermost/server/v8 (Go) Vendor— Affected before 8.0.0-20240926115259-20ed58906adc Fixed in 8.0.0-20240926115259-20ed58906adc Patch available GHSA-g376-m3h3-mj4r

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*9.5.0 to before 9.5.10; 9.10.0 to before 9.10.3; 9.11.0 to before 9.11.2VulnerableMattermost
  • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions 9.5.0 to before 9.5.10; 9.10.0 to before 9.10.3; 9.11.0 to before 9.11.2 Vulnerable ·Mattermost

Remediation

  • Fix · CNA Mattermost (Mattermost) Fixed in 10.0.0, 9.10.3, 9.11.2, 9.5.10
  • Fix · GHSA-g376-m3h3-mj4r github.com/mattermost/mattermost/server/v8 (Go) Fixed in 8.0.0-20240926115259-20ed58906adc Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-50052
  2. 2026-10-03 Alias added: GHSA-g376-m3h3-mj4r

References

Advisory 2

Other 1

  • TI-2025-18933 Arbitrary file read in Mattermost Boards via import & export board archive CVSS 3.1CRITICAL 9.9
  • TI-2025-04465 Path Traversal Leading to RCE by Any Authenticated Mattermost User CVSS 3.1CRITICAL 9.9
  • TI-2017-14068 An issue was discovered in Mattermost Server before 3.6.2. CVSS 3.1CRITICAL 9.8
  • TI-2017-14060 An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. CVSS 3.1CRITICAL 9.8
  • TI-2017-14048 An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. CVSS 3.1CRITICAL 9.8
  • TI-2025-14360 Arbitrary file read via block duplication in Mattermost Boards CVSS 3.1CRITICAL 9.9
See all 505 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences