VULNERABILITY INTELLIGENCE

CVE-2026-30977

EPSS probability0.50%
CISA KEVNot currently listed
Published2026-03-10
Last modified2026-06-17

Description

RenderBlocking is a MediaWiki extension that allows interface administrators to specify render-blocking CSS and JavaScript. Prior to 0.1.1, there is Stored XSS in renderblocking-css with Inline Assets mode. $wgRenderBlockingInlineAssets = true and editsitecss user rights are required. This vulnerability is fixed in 0.1.1.

Weakness classification

  • security-advisories@github.com: CWE-79

Primary references