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» GHSA-cmpr-8prq-w5p5
Description
Mattermost Confluence Plugin versions < 1.5.0 fail to check user access to Confluence spaces, which allows attackers to edit subscriptions for Confluence spaces that users do not have access to through the edit subscription endpoint.
Basic information
Type
reviewed
Severity
medium Advisory on GitHub
Open advisory ↗ Repository advisory
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Source code
Browse source ↗ Published (advisory)
2025-08-11 21:31:39 UTC
Updated
2025-08-11 22:59:10 UTC
GitHub reviewed
2025-08-11 22:59:08 UTC
NVD published
2025-08-11
EPSS Score
Score
Percentile
0.04%
13.79%
CVSS Scores
Base score
Version
Severity
Vector
6.4
3.1
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CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
CWEs
CWE id
Name
CWE-862
Missing Authorization
Affected packages (1)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
go
github.com/mattermost/mattermost-plugin-confluence < 1.5.0
1.5.0
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cvelogic
Threat Intelligence