MEDIUM
CVE-2023-1555
CWE-262Published: September 1, 2023· Updated: Jun 17, 2026
4.3
CVSS v3.1
Official Description
An issue has been discovered in GitLab affecting all versions starting from 15.2 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A namespace-level banned user can access the API.
Technical Analysis
CVE-2023-1555 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Vendors & Products
GitLab1 product(s)
gitlab
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
All References (4)
→
https://hackerone.com/reports/1911908Permissions Required
→
https://hackerone.com/reports/1911908Permissions Required
Quick Facts
CVE IDCVE-2023-1555
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-262
CISA KEVNo
Affected1 vendor(s)
PublishedSep 1, 2023
Related CVEs (CWE-262)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-1555 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.