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

2026-07-08T08:00:02.944834687Z

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",
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/lihaohong6/renderblocking

Affected ranges

Type

GIT

Repo

https://github.com/lihaohong6/renderblocking

Events

Introduced

Fixed

096fc47dad9dca153b02cba3db81f412c87fb2be

Database specific

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.1.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*

v0.1.0

Database specific

source

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