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CVE-2026-27743 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-89	Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')	[email protected]

Affected Products

Product	Versions
spip referer spam	< 1.3.0
CPE cpe:2.3:a:spip:referer_spam:::::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	CVE Modified	[email protected]
Mar 3, 2026	Reanalysis	[email protected]
Feb 27, 2026	Initial Analysis	[email protected]
Feb 26, 2026	CVE Modified	[email protected]
Feb 25, 2026	CVE Modified	[email protected]
Feb 25, 2026	New CVE Received	[email protected]