Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.
CVE-2025-46702
This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 92% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EG Risk
- 24(Track)EG Risk 24/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity54% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 7.9%
- KEV
- Not listed
Published
June 30, 2025
Last Modified
July 8, 2025
References (1)
- responsibledisclosure@mattermosthttps://mattermost.com/security-updates
Affected Packages
(4 across 1 ecosystem)
Go(4)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/mattermost/mattermost-server | — | 10.8.1+incompatible | — |
| github.com/mattermost/mattermost-server/v5 | — | — | — |
| github.com/mattermost/mattermost-server/v6 | — | — | — |
| github.com/mattermost/mattermost/server/v8 | — | 8.0.0-20250513065225-4ae5d647fb88 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 50× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
What is CVE-2025-46702?
When was CVE-2025-46702 disclosed?
Is CVE-2025-46702 actively exploited?
What is the CVSS score of CVE-2025-46702?
How do I remediate CVE-2025-46702?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-46702
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