CVE-2025-66843
Medium
Description
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.
SeverityMedium
CVSS5.4
Exploit probability5. percentile0.2%
Product
Grav
PublishedDec 15, 2025
First seenDec 15, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- getgrav grav1.7.49.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| getgrav grav | v < 1.7.49.5 | 1.7.49.5 |
| getgrav/gravPackagist | v ≤ 1.7.49.5 | — |
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