CVE-2026-27743 | The SPIP referer_spam plugin versions prior to 1.3.0 contain… | CVSS 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.

Metadata

CVE ID: CVE-2026-27743
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-02-23 21:38 UTC
Published: 2026-02-25 03:08 UTC
Last updated: 2026-05-25 23:41 UTC
Primary CWE: CWE-89
CWE-89 Improper Neutralization of Special Elements used in a…
Vendor / Product: SPIP / referer_spam
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
SPIP	referer_spam	—	0 < 1.3.0

Weakness (CWE)

CWE	Source	Description
CWE-89	cna	CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	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

References (5)