CVE-2026-100380

CVE-2026-100380: Reflected XSS in language-validation errors Reporter: Marco Paciaroni BomboBombone. Wikibase included unescaped language-validation error text in the SetLabel page. Rejected input could be returned as executable HTML before the request reached the label-saving operation. Affected...

CVE-2026-103441

CVE-2026-103441: Wikibase serialized entity object injection Reporter: Marco Paciaroni BomboBombone. The public action=parse API accepted PHP-serialized Wikibase entities. Unrestricted object construction could reach a Smarty destructor that unlinks a caller-selected path. Available PHP gadget...

Exploit for CVE-2026-103441

CVE-2026-103441: Wikibase serialized entity object injection...

CVE-2026-103441

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43...

CVE-2026-103441 Unauthenticated arbitrary file deletion through Wikibase serialized entity parsing

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43...

CVE-2026-103441

The MediaWiki Wikibase extension (versions 1.46, 1.45, and 1.43 ) is susceptible to a deserialization of untrusted data vulnerability. This flaw occurs during the parsing of serialized entities , which can lead to the execution of arbitrary code within non-executable files. While the description ...

EUVD-2026-90073

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43...

CVE-2026-103441: Deserialization of Untrusted Data

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43...

MediaWiki Wikibase Extension 1.46.0 Cross Site Scripting

MediaWiki Wikibase Extension versions before 1.46.1, 1.45.5, and 1.43.10 contain a reflected cross site scripting vulnerability in Special:SetLabel language validation. The supplied proof of concept submits a harmless marker and detects unescaped reflection...

PT-2026-103349

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43...

CVE-2026-100245

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100245 Stored XSS on Wikibase Special:SetSiteLink via unescaped system message

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

EUVD-2026-89092

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100245

The Wikimedia Foundation Mediawiki - Wikibase Extension is vulnerable to a Stored Cross-Site Scripting (XSS) flaw due to the improper neutralization of input during web page generation. Specifically, the vulnerability occurs on Wikibase Special:SetSiteLink when an unescaped system message is proc...

CVE-2026-100245 Stored XSS on Wikibase Special:SetSiteLink via unescaped system message

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

PT-2026-102703

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100245: Improper Neutralization of Input During Web Page Generation

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100380

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

EUVD-2026-87345

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting XSS. This issue affects Mediawiki - Wikibase Extension: from before 1.46.1, 1.45.5, 1.43.10...

CVE-2026-100380

The Wikimedia Foundation Mediawiki - Wikibase Extension is vulnerable to a Reflected Cross-Site Scripting (XSS) flaw due to improper neutralization of input during web page generation. Specifically, the issue exists within the Special:SetLabel language validation component. This vulnerability aff...