CVE-2025-66843CWE-79cross-site-scripting

CVE-2025-66843

Medium · published December 15, 2025

CVSS v3.1
5.4
EPSS
0%
Percentile
5.1
In the wild
Unconfirmed
What it is

grav before v1.7.49.5 has a Stored Cross-Site Scripting (Stored XSS) vulnerability in the page editing functionality. An authenticated low-privileged user with permission to edit content can inject malicious JavaScript payloads into editable fields. The payload is stored on the server and later executed when any other user views or edits the affected page.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00162 · 5.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-15T21:15Z
Affected products (1)
ProductVersionsFixed in
getgrav/grav< 1.7.49.51.7.49.5
References (2)
https://github.com/Yohane-Mashiro/grav_cve/issues/1 · [email protected]https://github.com/Yohane-Mashiro/grav_cve/issues/1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 15 DEC 00:00Z
    grav before v1.7.49.5 has a Stored Cross-Site Scripting (Stored XSS) vulnerability in the page editing functionality
    cvelistv5