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Fencer Vulns
low 3.1

CVE-2025-1792 json

Improper Access Control in Mattermost Channel Member API

published 2025-05-30 17 mo ago modified 2026-08-07 3 mo ago also GHSA-hc6v-386m-93pq , GO-2025-3730 , EUVD-2025-16489

cvss
3.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly enforce access controls for guest users accessing channel member information, allowing authenticated guest users to view metadata about members of public channels via the channel members API endpoint.

Patch / fix

  • go github.com/mattermost/mattermost/server/v8 8.0.0-20250414110750-c23f44fe8ed0, 9.11.13, 10.5.4, 10.7.1
  • go github.com/mattermost/mattermost-server 9.11.13+incompatible, 10.5.4+incompatible, 10.7.1+incompatible
  • Mattermost Mattermost 9.11.13, 10.5.4, 10.8.0
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250612T141001-1.1

opensuse advisories openSUSE-SU-2025:15225-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
GitHub 3.1 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/mattermost/mattermost/server/v8
>=10.6.0-rc1, <10.7.1
>=10.0.0-rc1, <10.5.4
>=9.0.0-rc1, <9.11.13
<8.0.0-20250414110750-c23f44fe8ed0
10.7.1
10.5.4
9.11.13
8.0.0-20250414110750-c23f44fe8ed0
go github.com/mattermost/mattermost-server
>=9.0.0-rc1+incompatible, <9.11.13+incompatible
>=10.0.0-rc1+incompatible, <10.5.4+incompatible
>=10.6.0-rc1+incompatible, <10.7.1+incompatible
9.11.13+incompatible
10.5.4+incompatible
10.7.1+incompatible
go github.com/mattermost/mattermost-server/v5
all versions
no fix listed
go github.com/mattermost/mattermost-server/v6
all versions
no fix listed

Affected products

  • Mattermost Mattermost

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.