Description
SPIP before version 4.4.18 contains a missing authorization vulnerability in sensitive actions under ecrire/action/ that allows unauthenticated attackers to invoke privileged actions by supplying only a valid CSRF nonce without any server-side permission check. Attackers can bypass template-level authorization guards through direct HTTP requests to invoke actions such as editer_auteur, enabling arbitrary account password rewrites including administrator accounts and resulting in full account takeover.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SPIP | SPIP | < 4.4.18 | 4.4.18 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | spip | 4.4.18+dfsg-1 | — |
| Debian 13 | spip | 4.4.19+dfsg-0+deb13u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | spip | No fix yet | — |
| Ubuntu 24.04 LTS | spip | No fix yet | — |
| Ubuntu 22.04 LTS | spip | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | spip | No fix yet | — |
| Ubuntu Pro 18.04 LTS | spip | No fix yet | — |
| Ubuntu Pro 16.04 LTS | spip | No fix yet | — |
References
- Researcher Blog technical-description exploit
- Release Notes release-notes patch
- https://www.vulncheck.com/advisories/spip-missing-authorization-via-ecrire-action-editer-auteur third-party-advisory