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CVE-2023-5933

18
FAUCET Score

CVE-2023-5933 is a medium-severity vulnerability affecting GitLab CE/EE versions after 13.7 and before 16.6.6, 16.7.4, and 16.8.1. It stems from improper input sanitization of usernames, allowing authenticated attackers to make arbitrary API PUT requests. The vulnerability has a CVSS score of 5.4, indicating a network attack vector with low complexity, requiring user interaction, and potentially leading to low confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, though it has received limited media coverage from GitLab's security release.

Impacted Technologies

VendorProductVersion(s)CPE
>= 13.7, < 16.6.6CPE match
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
>= 16.7, < 16.7.4CPE match
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
>= 16.8, < 16.8.1CPE match
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
>= 13.7.0, < 16.6.6CPE matchmatch criteria
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
>= 13.7.0, < 16.6.6CPE matchmatch criteria
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 82nd percentile among its peer group of 15,239 CVEs.

Social Chatter

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

Media Mentions

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

Remediation records are not available for this CVE.

References

about.gitlab.com / releases/2024/01/25/critical-security-release-gitlab-16-8-1-released
Vendor Advisory
gitlab.com / gitlab-org/gitlab/-/issues/430236
Broken Link
hackerone.com / reports/2225710
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