Cross-site Scripting (XSS)

Semantic MediaWiki is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to attacker-controlled query input being reflected into raw HTML without proper output encoding, which allows an unauthenticated attacker to inject malicious scripts through a crafted query and execute them in ...

Cross-site Scripting (XSS)

Semantic MediaWiki is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to insufficient output-context encoding of the user-controlled value parameter in rendered output and error messages, which allows an attacker to inject malicious content and execute scripts in a victim's brows...

CVE-2026-77608

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, when the value parameter was reflected back into rendered output and error messaging paths without enough output-context encoding. Version 7.2.0...

CVE-2026-77609

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, Special:URIResolver resolves its user-controlled subpage to a MediaWiki title and issues an HTTP 303 redirect to $title-getFullURL without...

CVE-2026-77610

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, query debug output format=debug, or the debug request parameter on Special:Ask is assembled by SMW\Query\DebugFormatter and emitted as raw HTML...

CVE-2026-77616

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77607

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, sep was inserted verbatim into HTML cell joins. This made it possible to inject HTML through the separator value. Version 7.2.0 fixes the issue...

CVE-2026-77606

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, when headers=plain, table header text was emitted into via a raw HTML path. User-controlled mainlabel content could therefore become executable...

Semantic MediaWiki's Special:FacetedSearch cstate hidden inputs enable reflected XSS (residual of CVE-2025-10354)

Summary Special:FacetedSearch cstate hidden inputs enable reflected XSS residual of CVE-2025-10354 Details Affected versions and vulnerable location - Confirmed present on latest shipped release tag available in the local clone: SemanticMediaWiki/[email protected]. - Confirmed present on...

Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Reflected XSS via a forged cursor pagination token Failure mode Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an unsigned base64url-encoded JSON blob, so its contents are fully attacker-controlled. When the...

GHSA-CX86-7XWP-W9WF Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Reflected XSS via a forged cursor pagination token Failure mode Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an unsigned base64url-encoded JSON blob, so its contents are fully attacker-controlled. When the...

CVE-2026-77616 Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616

Semantic MediaWiki versions 7.0.0–7.1.0 are affected by a reflected XSS in the Special:Ask page. The cursor query parameter (introduced for keyset pagination in 7.0.0) is an unsigned base64url-encoded JSON blob, making its contents fully attacker-controlled. When the cursor's sort anchor mismatch...

EUVD-2026-83189

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616 Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616 Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77610

Semantic MediaWiki prior to version 7.2.0 is affected by a reflected XSS in its query debug output. The SMW\Query\DebugFormatter class assembles debug output (format=debug on Special:Ask) as raw HTML, and several sinks — buildHTML(), prettifySQL(), and prettifyExplain() — apply no output-context ...

CVE-2026-77610 Semantic MediaWiki has a query debug output XSS (`DebugFormatter`)

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, query debug output format=debug, or the debug request parameter on Special:Ask is assembled by SMW\Query\DebugFormatter and emitted as raw HTML...

CVE-2026-77610 Semantic MediaWiki has a query debug output XSS (`DebugFormatter`)

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, query debug output format=debug, or the debug request parameter on Special:Ask is assembled by SMW\Query\DebugFormatter and emitted as raw HTML...

CVE-2026-77610 Semantic MediaWiki has a query debug output XSS (`DebugFormatter`)

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, query debug output format=debug, or the debug request parameter on Special:Ask is assembled by SMW\Query\DebugFormatter and emitted as raw HTML...