CVE-2026-27743

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-27743
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.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html Release Notes
https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/ Exploit Third Party Advisory
https://git.spip.net/spip-contrib-extensions/referer_spam/-/commit/33682df73cd5f7e9c72d8c4d5088611fa2441683 Patch
https://plugins.spip.net/referer_spam.html Product
https://www.vulncheck.com/advisories/spip-referer-spam-unauthenticated-sql-injection Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:spip:referer_spam*:*:*:*:*:*:*:*:*
History

27 Feb 2026, 18:38

Type Values Removed Values Added
First Time Spip referer Spam*
Spip
References () https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html - () https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html - Release Notes
References () https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/ - () https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/ - Exploit, Third Party Advisory
References () https://git.spip.net/spip-contrib-extensions/referer_spam/-/commit/33682df73cd5f7e9c72d8c4d5088611fa2441683 - () https://git.spip.net/spip-contrib-extensions/referer_spam/-/commit/33682df73cd5f7e9c72d8c4d5088611fa2441683 - Patch
References () https://plugins.spip.net/referer_spam.html - () https://plugins.spip.net/referer_spam.html - Product
References () https://www.vulncheck.com/advisories/spip-referer-spam-unauthenticated-sql-injection - () https://www.vulncheck.com/advisories/spip-referer-spam-unauthenticated-sql-injection - Third Party Advisory
CPE cpe:2.3:a:spip:referer_spam*:*:*:*:*:*:*:*:*

26 Feb 2026, 21:28

Type Values Removed Values Added
References
  • () https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html -

25 Feb 2026, 16:23

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
References
  • () https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/ -

25 Feb 2026, 04:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-25 04:16

Updated : 2026-02-27 18:38

NVD link : CVE-2026-27743

Mitre link : CVE-2026-27743

CVE.ORG link : CVE-2026-27743

JSON object : View

Products Affected

spip

  • referer_spam*
CWE
CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')