CVE-2026-117536
High
Description
REDAXO before 5.21.3 contains a cross-site request forgery vulnerability in the backend user administration page (users/users) because the CSRF token check only runs when the save parameter is set, while the update path triggered by FUNC_UPDATE does not require it. Attackers can lure a logged-in backend user with the users[] permission to a crafted GET link to grant administrator rights, deactivate accounts, or lock out the sole administrator.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Redaxo Core
PublishedOct 27, 2026
First seenOct 27, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- redaxo core5.21.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redaxo core | v < 5.21.3 | 5.21.3 |
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