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CVE-2023-5159

14
FAUCET Score

CVE-2023-5159 is a low-severity vulnerability affecting Mattermost, where a User Manager with user edit permissions can improperly manage or update bots due to insufficient permission verification. The attack vector is network-based with low complexity, requiring high privileges, and its impact is limited to low integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, <= 8.1.0CPE match
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
>= 0, <= 8.7.9CPE match
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.8.10CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
>= 8.0.0, < 8.1.1CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.8LOW

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.2
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 44th percentile among its peer group of 709 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 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 (3)

gopatch availablevia ghsa
Product: github.com/mattermost/mattermost/server/v8Fixed in: 8.1.1
gopatch availablevia ghsa
Product: github.com/mattermost/mattermost/server/v8Fixed in: 8.0.2
gopatch availablevia ghsa
Product: github.com/mattermost/mattermost-server/v6Fixed in: 7.8.10

Vendor Advisories (1)

goGHSA-rp65-jpc7-8h8plow

Mattermost Incorrect Authorization vulnerability

Sep 29, 2023

References

mattermost.com / security-updates
Vendor Advisory