Wikimedia MediaWiki up to 1.43.6/1.44.3/1.45.1 Article.Php exposure of resource

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Wikimedia MediaWiki up to 1.43.6/1.44.3/1.45.1. This impacts an unknown function of the file includes/Page/Article.Php. Executing a manipulation can lead to information disclosure. This vulnerability appears as CVE-2026-34094. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Wikimedia MediaWiki up to 1.43.6/1.44.3/1.45.1 and classified as problematic. This vulnerability affects an unknown code block of the file includes/Page/Article.Php. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-668. The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. As an impact it is known to affect confidentiality. CVE summarizes:

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Page/Article.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

The advisory is shared for download at phabricator.wikimedia.org. This vulnerability was named CVE-2026-34094 since 03/25/2026. The exploitation appears to be difficult. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. There are known technical details, but no exploit is available.

By approaching the search of inurl:includes/Page/Article.Php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.43.7, 1.44.4 or 1.45.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

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: 3.0
VulDB Meta Temp Score: 2.9

VulDB Base Score: 2.2
VulDB Temp Score: 2.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 3.8
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Exposure of resource
CWE: CWE-668 / CWE-200 / CWE-284
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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: MediaWiki 1.43.7/1.44.4/1.45.2

Timelineinfo

03/25/2026 CVE reserved
05/11/2026 +46 days Advisory disclosed
05/11/2026 +0 days VulDB entry created
05/19/2026 +7 days VulDB entry last update

Sourcesinfo

Advisory: phabricator.wikimedia.org
Status: Confirmed

CVE: CVE-2026-34094 (🔒)
GCVE (CVE): GCVE-0-2026-34094
GCVE (VulDB): GCVE-100-362668

Entryinfo

Created: 05/11/2026 20:16
Updated: 05/19/2026 01:06
Changes: 05/11/2026 20:16 (66), 05/19/2026 01:06 (12)
Complete: 🔍
Cache ID: 216::103

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