Scribunto Extension up to 1.39.12/1.42.6/1.43.1 on Mediawiki access control

Summaryinfo

A vulnerability identified as critical has been detected in Scribunto Extension up to 1.39.12/1.42.6/1.43.1 on Mediawiki. Affected by this issue is some unknown functionality. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2025-53501. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Scribunto Extension up to 1.39.12/1.42.6/1.43.1 on Mediawiki. It has been classified as critical. This affects some unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Improper Access Control vulnerability in Wikimedia Foundation Mediawiki - Scribunto Extension allows : Accessing Functionality Not Properly Constrained by Authorization.This issue affects Mediawiki - Scribunto Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

The weakness was shared by Leo768. It is possible to read the advisory at phabricator.wikimedia.org. This vulnerability is uniquely identified as CVE-2025-53501 since 06/30/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 1.39.13, 1.42.7 or 1.43.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19886). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Scribunto Extension

Version

• 1.39.0
• 1.39.1
• 1.39.2
• 1.39.3
• 1.39.4
• 1.39.5
• 1.39.6
• 1.39.7
• 1.39.8
• 1.39.9
• 1.39.10
• 1.39.11
• 1.39.12
• 1.42.0
• 1.42.1
• 1.42.2
• 1.42.3
• 1.42.4
• 1.42.5
• 1.42.6
• 1.43.0
• 1.43.1

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion