GitLab Community Edition/Enterprise Edition up to 18.2.6/18.3.2/18.4.0 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in GitLab Community Edition and Enterprise Edition up to 18.2.6/18.3.2/18.4.0. Affected by this issue is some unknown functionality. Executing a manipulation can lead to cross site scripting. The identification of this vulnerability is CVE-2025-9642. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in GitLab Community Edition and Enterprise Edition up to 18.2.6/18.3.2/18.4.0 and classified as problematic. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1 that could allow an attacker to inject malicious content that may lead to account takeover.

The weakness was shared by joaxcar as 566505. The advisory is available at gitlab.com. This vulnerability was named CVE-2025-9642 since 08/29/2025. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 265987 (GitLab 14.10 < 18.2.7 / 18.3 < 18.3.3 / 18.4 < 18.4.1 (CVE-2025-9642)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 18.2.7, 18.3.3 or 18.4.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (265987) and CERT Bund (WID-SEC-2025-2140). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Open Source GitLab

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.6
NVD Vector: 🔒

CNA Base Score: 8.7
CNA Vector (GitLab): 🔒

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265987
Nessus Name: GitLab 14.10 < 18.2.7 / 18.3 < 18.3.3 / 18.4 < 18.4.1 (CVE-2025-9642)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Community Edition/Enterprise Edition 18.2.7/18.3.3/18.4.1

Timelineinfo

08/29/2025 CVE reserved
09/26/2025 +28 days Advisory disclosed
09/26/2025 +0 days VulDB entry created
09/30/2025 +4 days VulDB entry last update

Sourcesinfo

Vendor: gitlab.com

Advisory: 566505
Researcher: joaxcar
Status: Confirmed

CVE: CVE-2025-9642 (🔒)
GCVE (CVE): GCVE-0-2025-9642
GCVE (VulDB): GCVE-100-326074
CERT Bund: WID-SEC-2025-2140 - GitLab: Mehrere Schwachstellen

Entryinfo

Created: 09/26/2025 11:28
Updated: 09/30/2025 02:54
Changes: 09/26/2025 11:28 (66), 09/27/2025 03:29 (2), 09/29/2025 09:38 (7), 09/30/2025 02:54 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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