CVE-2026-27743: critical vulnerability in SPIP referer_spam
SPIP referer_spam < 1.3.0 Unauthenticated SQL Injection
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.7%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
SPIP · referer_spamReferences
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.htmlhttps://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/https://git.spip.net/spip-contrib-extensions/referer_spam/-/commit/33682df73cd5f7e9c72d8c4d5088611fa2441683https://plugins.spip.net/referer_spam.htmlhttps://www.vulncheck.com/advisories/spip-referer-spam-unauthenticated-sql-injection