An issue was discovered in Mattermost Mobile Apps before 1.29.0.
Priority LOW 35CWE-459Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An issue was discovered in Mattermost Mobile Apps before 1.29.0. The iOS app allowed Single Sign-On cookies and Local Storage to remain after a logout, aka MMSA-2020-0013.
Why it matters now
EPSS 0.0112 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mattermost:mattermost_mobile:*:*:*:*:*:*:*:* | before 1.29.0 | Vulnerable | Mattermost |
| cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Apple |
- cpe:2.3:a:mattermost:mattermost_mobile:*:*:*:*:*:*:*:* Versions before 1.29.0 Vulnerable ·Mattermost
- cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-14451
- 2026-10-03 Alias added: GHSA-6gvq-vch8-75pq
References
Advisory 1
More Mattermost Mobile vulnerabilities
- TI-2020-11310 An issue was discovered in Mattermost Mobile Apps before 1.30.0. CVSS 3.1HIGH 7.5
- TI-2019-15070 An issue was discovered in Mattermost Mobile Apps before 1.26.0. CVSS 3.1HIGH 7.5
- TI-2019-15066 An issue was discovered in Mattermost Mobile Apps before 1.26.0. CVSS 3.1HIGH 7.5
- TI-2025-14702 Mobile crash via object that can't be cast to String in Attachment Field CVSS 3.1HIGH 7.5
- TI-2025-14379 Mobile crash via improper validation of proto style in attachments CVSS 3.1HIGH 7.5
- TI-2025-21792 Unauthorized Notification Exposure in Mobile App Under Specific Conditions CVSS 3.1HIGH 7.5
Sources
- CVE-2020-14451 · CVE Program
- CVE-2020-14451 · NVD
- FIRST EPSS
- GHSA-6gvq-vch8-75pq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences