CVE-2026-27743 SPIP referer_spam < 1.3.0 Unauthenticated SQL Injection
Unauthenticated attackers can execute arbitrary SQL queries via the url parameter in the referer_spam plugin, leading to data exposure or modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-27743?
CVE-2026-27743 is a critical SQL injection vulnerability in SPIP referer_spam, published on 25 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The SPIP referer_spam plugin versions prior to 1.3.0 contain an unauthenticated SQL injection vulnerability in the referer_spam_ajouter and referer_spam_supprimer action handlers. The handlers read the url parameter from a GET request and interpolate it directly into SQL LIKE clauses without input validation or parameterization. The endpoints do not enforce authorization checks and do not use SPIP action protections such as securiser_action(), allowing remote attackers to execute arbitrary SQL queries.
Weakness: CWE-89
Which versions are affected by CVE-2026-27743?
It affects 1 product.
Products include Spip Referer Spam.
How do I fix CVE-2026-27743?
No fix has been published for CVE-2026-27743 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-27743 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27743 exists.
Sources
Also known as GHSA-pg8p-25c5-3f44.