CVE-2026-104070
Description
The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulnerability that allows unauthenticated attackers to modify arbitrary editable object fields by omitting the secu_ anti-forgery parameter in crayons_store.php, causing the authorization dispatcher to resolve an unconditionally-true handler instead of the proper modification check. Attackers can chain this flaw to write a malicious .html skeleton file, disclose sensitive configuration files containing the site secret, and forge a signed ajax context to execute the uploaded skeleton, achieving arbitrary PHP code execution as the web-server user.
How to fix
- SPIP SPIP Crayons Plugin3.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| SPIP SPIP Crayons Plugin | v < 3.5.0 | 3.5.0 |
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