CVE-2026-109322CWE-79cross-site-scripting

CVE-2026-109322

Medium · published October 12, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
9.3
In the wild
Unconfirmed
What it is

Grav Guestbook plugin before 0.5.2 contains a stored cross-site scripting vulnerability because its AJAX Load more and Admin Load all handlers insert stored author and message fields into the DOM as unescaped HTML via jQuery. Unauthenticated visitors can submit markup that executes in other visitors' browsers and, in versions 0.5.0 and 0.5.1, in administrator moderation sessions.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00200 · 9.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-12T21:17Z
References (2)
https://github.com/getgrav/grav/security/advisories/GHSA-jgpj-gchm-6j29 · [email protected]https://www.vulncheck.com/advisories/grav-guestbook-before-0.5.2-stored-xss-via-ajax-pagination-and-admin-views · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:05Z
    Grav Guestbook before 0.5.2 Stored XSS via AJAX Pagination and Admin Views
    cvelistv5
  • 12 OCT 16:05Z
    Grav Guestbook before 0.5.2 Stored XSS via AJAX Pagination and Admin Views
    cvelistv5