Wikimedia CheckUser CheckUserUserInfoCardService.Php cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Wikimedia CheckUser. This vulnerability affects unknown code of the file src/Services/CheckUserUserInfoCardService.Php. The manipulation leads to cross site scripting. This vulnerability is documented as CVE-2025-61650. The attack can be initiated remotely. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Wikimedia CheckUser (affected version unknown) and classified as problematic. This issue affects an unknown functionality of the file src/Services/CheckUserUserInfoCardService.Php. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation CheckUser. This vulnerability is associated with program files src/Services/CheckUserUserInfoCardService.Php. This issue affects CheckUser: from * before 795bf333272206a0189050d975e94b70eb7dc507.

The advisory is shared at phabricator.wikimedia.org. The identification of this vulnerability is CVE-2025-61650 since 09/29/2025. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation needs additional levels of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:src/Services/CheckUserUserInfoCardService.Php it is possible to find vulnerable targets with Google Hacking.

Applying the patch 795bf333272206a0189050d975e94b70eb7dc507 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-206642). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.3

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

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
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 795bf333272206a0189050d975e94b70eb7dc507

Timelineinfo

09/29/2025 CVE reserved
02/03/2026 +127 days Advisory disclosed
02/03/2026 +0 days VulDB entry created
02/04/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: phabricator.wikimedia.org
Status: Confirmed

CVE: CVE-2025-61650 (🔒)
GCVE (CVE): GCVE-0-2025-61650
GCVE (VulDB): GCVE-100-343841
EUVD: 🔒

Entryinfo

Created: 02/03/2026 07:50
Updated: 02/04/2026 11:30
Changes: 02/03/2026 07:50 (68), 02/04/2026 08:46 (1), 02/04/2026 11:30 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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