PT-2026-76928 · Grav · Grav
CVSS v4.0
9.3
Critical
| Vector | AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N |
Name of the Vulnerable Software and Affected Versions
Grav versions prior to 2.0.15
Description
A stored cross-site scripting issue exists in the
detectXss() function. Authenticated editors can bypass event-handler detection by using unpaired quotes in unquoted attribute values. This allows the injection of event handlers, such as onerror=, which pass validation and execute within the browsers of visitors when page content is rendered.Recommendations
Update to version 2.0.15 or later.
As a temporary workaround, restrict the permissions of authenticated editors to prevent them from modifying page content until the update is applied.
Exploit
Fix
XSS
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Grav