GitLab Community Edition/Enterprise Edition up to 18.1.4/18.2.4/18.3.0 Web Interface code injection

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in GitLab Community Edition and Enterprise Edition up to 18.1.4/18.2.4/18.3.0. Affected is an unknown function of the component Web Interface. This manipulation causes code injection. This vulnerability is handled as CVE-2025-5101. It is possible to launch the attack on the local host. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in GitLab Community Edition and Enterprise Edition up to 18.1.4/18.2.4/18.3.0. Affected by this vulnerability is an unknown code of the component Web Interface. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.

The weakness was released by st4nly0n as 545165. The advisory is shared at gitlab.com. This vulnerability is known as CVE-2025-5101 since 05/22/2025. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation needs additional levels of successful authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 258043 (GitLab < 18.1.5 / 18.2 < 18.2.5 / 18.3 < 18.3.1 (CVE-2025-5101)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.1.5, 18.2.5 or 18.3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (258043). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.9
VulDB Temp Score: 3.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.0
CNA Vector (GitLab): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 258043
Nessus Name: GitLab < 18.1.5 / 18.2 < 18.2.5 / 18.3 < 18.3.1 (CVE-2025-5101)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.1.5/18.2.5/18.3.1

Timelineinfo

05/22/2025 CVE reserved
08/28/2025 +98 days Advisory disclosed
08/28/2025 +0 days VulDB entry created
08/30/2025 +2 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 545165
Researcher: st4nly0n
Status: Confirmed

CVE: CVE-2025-5101 (🔒)
GCVE (CVE): GCVE-0-2025-5101
GCVE (VulDB): GCVE-100-321661

Entryinfo

Created: 08/28/2025 07:38
Updated: 08/30/2025 05:55
Changes: 08/28/2025 07:38 (67), 08/28/2025 17:18 (2), 08/30/2025 05:55 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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