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CVE-2026-30977

Published: Mar 10, 2026

Modified: Mar 11, 2026

PUBLISHED

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.

Vendor	Product	Versions
lihaohong6	RenderBlocking	affected `< 0.1.1`

Weaknesses (CWE)

References

https://github.com/lihaohong6/RenderBlocking/security/advisories/GHSA-4h5r-8rjm-496r

x_refsource_CONFIRM

https://github.com/lihaohong6/RenderBlocking/commit/096fc47dad9dca153b02cba3db81f412c87fb2be

x_refsource_MISC

https://github.com/lihaohong6/RenderBlocking/releases/tag/v0.1.1

x_refsource_MISC

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