VulnerabilityDeferred
CVE-2026-75831
Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method.
MEDIUM 5.1EPSS 0.31%
Does this matter?
Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- disclosure@vulncheck.com
References
- https://github.com/getgrav/grav/commit/aba291a59cab29ddce491175791888d8d0b65e20
- https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97
- https://www.vulncheck.com/advisories/grav-before-stored-xss-via-audio-video-source-url
- https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.