CVE-2026-27743

CRITICAL EPSS 44.0%
Published Feb 25, 20264mo ago · Modified Jun 17, 20261w ago
9.3 CVSS 4.0
Critical
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
44.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-89 SQL Injection Injection

Affected Products 1

VendorProductVersionRange
spipreferer_spam* <1.3.0

References 5

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

Remediation

  • git.spip.net https://git.spip.net/spip-contrib-extensions/referer_spam/-/commit/33682df73cd5f7e9c72d8c4d5088611fa2441683
    Patch