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.
References (5)
Core 5
Core References
Various Sources technical-description
exploit
https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/
Various Sources vendor-advisory
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html
Various Sources product
https://plugins.spip.net/referer_spam.html
Patch patch
https://git.spip.net/spip-contrib-extensions/referer_spam/-/commit/33682df73cd5f7e9c72d8c4d5088611fa2441683
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/spip-referer-spam-unauthenticated-sql-injection
Scores
CVSS v3
9.8
EPSS
0.0060
EPSS Percentile
43.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-89
Status
published
Products (3)
spip/referer_spam
< 1.3.0
SPIP/referer_spam
< 1.3.0
spip/referer_spam*
< 1.3.0
Published
Feb 25, 2026
Tracked Since
Feb 25, 2026