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Security Database

CVE

CWE

Training

CVE-2026-27743

Published: Feb 25, 2026

Modified: May 25, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

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.

Vendor	Product	Versions
SPIP	referer_spam	affected `0 - < 1.3.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/

technical-description

exploit

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html

vendor-advisory

https://plugins.spip.net/referer_spam.html

product

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

patch

https://www.vulncheck.com/advisories/spip-referer-spam-unauthenticated-sql-injection

third-party-advisory

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