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CVE-2023-27263

21
FAUCET Score

CVE-2023-27263 is a missing permissions check vulnerability in Mattermost's /plugins/playbooks/api/v0/runs API, allowing an authenticated attacker to list and view playbooks from teams they are not a member of. Rated Medium with a CVSS score of 6.5, this vulnerability has a low attack complexity and high confidentiality impact, as it grants unauthorized access to sensitive playbook information. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.1.4CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
7.4.0CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost:7.4.0:*:*:*:*:*:*:*
7.5.0CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost:7.5.0:*:*:*:*:*:*:*
7.5.1CPE matchmatch criteria
cpe:2.3:a:mattermost:mattermost:7.5.1:*:*:*:*:*:*:*
>= 0, <= 7.1.4CPE match
cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 50th percentile among its peer group of 21,974 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

Remediation records are not available for this CVE.

References

mattermost.com / security-updates
Vendor Advisory