CVE-2026-30977

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Source
https://cve.org/CVERecord?id=CVE-2026-30977
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30977.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-30977
Aliases
  • GHSA-4h5r-8rjm-496r
Published
2026-03-10T17:40:38.098Z
Modified
2026-04-02T13:23:51.689802Z
Severity
  • 2.0 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
RenderBlocking has Stored XSS in renderblocking-css with Inline Assets mode
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30977.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ]
}
References

Affected packages

Git / github.com/lihaohong6/renderblocking

Affected ranges

Type
GIT
Repo
https://github.com/lihaohong6/renderblocking
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
096fc47dad9dca153b02cba3db81f412c87fb2be
Type
GIT
Repo
https://github.com/lihaohong6/renderblocking
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
096fc47dad9dca153b02cba3db81f412c87fb2be

Affected versions

v0.*
v0.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30977.json"