CVE Explorer

CVE-2026-30977

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c6fd22797e56e9d82e87f9139475680372dd57df6cbf960a95f5ce055f780664

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"RenderBlocking","vendor":"lihaohong6","versions":[{"status":"affected","version":"< 0.1.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:2393c783b316ff1c3109b257f6c1180edbbeb9d85d1bc7dc79ea2fd1a0a05d66 · sha256:42e53303929e5ef2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2,"baseSeverity":"LOW","privilegesRequired":"HIGH","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:2393c783b316ff1c3109b257f6c1180edbbeb9d85d1bc7dc79ea2fd1a0a05d66 · sha256:42e53303929e5ef2… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:2393c783b316ff1c3109b257f6c1180edbbeb9d85d1bc7dc79ea2fd1a0a05d66 · sha256:42e53303929e5ef2… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/lihaohong6/RenderBlocking/commit/096fc47dad9dca153b02cba3db81f412c87fb2be","tags":["x_refsource_MISC"],"url":"https://github.com/lihaohong6/RenderBlocking/commit/096fc47dad9dca153b02cba3db81f412c87fb2be"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:2393c783b316ff1c3109b257f6c1180edbbeb9d85d1bc7dc79ea2fd1a0a05d66 · sha256:42e53303929e5ef2… · /containers/cna/references/1

{"name":"https://github.com/lihaohong6/RenderBlocking/releases/tag/v0.1.1","tags":["x_refsource_MISC"],"url":"https://github.com/lihaohong6/RenderBlocking/releases/tag/v0.1.1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:2393c783b316ff1c3109b257f6c1180edbbeb9d85d1bc7dc79ea2fd1a0a05d66 · sha256:42e53303929e5ef2… · /containers/cna/references/2

{"name":"https://github.com/lihaohong6/RenderBlocking/security/advisories/GHSA-4h5r-8rjm-496r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/lihaohong6/RenderBlocking/security/advisories/GHSA-4h5r-8rjm-496r"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:2393c783b316ff1c3109b257f6c1180edbbeb9d85d1bc7dc79ea2fd1a0a05d66 · sha256:42e53303929e5ef2… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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