CVE-2026-30977
Low
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.
SeverityLow
CVSS2.0
Exploit probability46. percentile0.5%
ProductRenderBlocking
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lihaohong6 RenderBlocking | < 0.1.1 | — |
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