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CVE-2025-48731

21
FAUCET Score

CVE-2025-48731 describes an access control vulnerability in Mattermost Confluence Plugin versions prior to 1.5.0. An authenticated attacker can exploit this flaw to edit subscriptions for Confluence spaces they lack access to, by leveraging the edit subscription endpoint. With a CVSS score of 6.4 (Medium), this vulnerability has a low attack complexity and requires low privileges, potentially leading to limited confidentiality and integrity impacts. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.5.0CPE matchmatch criteria
cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 3rd percentile among its peer group of 21,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/mattermost/mattermost-plugin-confluenceFixed in: 1.5.0

Vendor Advisories (1)

goGHSA-cmpr-8prq-w5p5medium

Mattermost Confluence Plugin has Missing Authorization vulnerability

Aug 11, 2025

References

mattermost.com / security-updates
Vendor Advisory