CVEvulnerability
CVE-2026-75831
5.1 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-08-18
- Last modified
- 2026-10-22
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.1 MEDIUM — CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 7.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
- Weaknesses
- CWE-79
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.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/getgrav/grav/commit/aba291a59cab29ddce491175791888d8d0b65e20 github.com
- https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97 github.com
- https://www.vulncheck.com/advisories/grav-before-stored-xss-via-audio-video-source-url www.vulncheck.com
- https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97 github.com