High severity7.6NVD Advisory· Published Aug 18, 2026

CVE-2026-75831

Description

Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method. The media URL fragment is concatenated unescaped into rawHtml source elements, allowing attackers to inject arbitrary HTML and JavaScript that executes in viewers' sessions.

Affected products

Getgrav/Gravllm-fuzzy
Range: <2.0.15

Patches

Vulnerability mechanics

References

github.com/getgrav/grav/commit/aba291a59cab29ddce491175791888d8d0b65e20nvd
github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97nvd
www.vulncheck.com/advisories/grav-before-stored-xss-via-audio-video-source-urlnvd

News mentions

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cvss	0.494
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000