Is CVE-2026-27743 actively exploited?

No active exploitation of CVE-2026-27743 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27743 be exploited remotely?

Yes. CVE-2026-27743 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27743?

CVE-2026-27743 has a CVSS score of 9.8 (CRITICAL) and an EPSS exploitation probability of 0.08%.

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CRITICAL

CVE-2026-27743

CWE-89Published: February 25, 2026· Updated: Mar 3, 2026

9.8

CVSS v3.1

EPSS:0.08%probability of exploitation in 30 daysPercentile:24.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-27743 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.