Is CVE-2026-29861 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-29861, but active exploitation has not been confirmed.

Can CVE-2026-29861 be exploited remotely?

Yes. CVE-2026-29861 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-29861?

CVE-2026-29861 has a CVSS score of 9.8 (CRITICAL).

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CRITICALPOC

CVE-2026-29861

Published: April 10, 2026· Updated: Apr 14, 2026

9.8

CVSS v3.1

Official Description

PHP-MYSQL-User-Login-System v1.0 was discovered to contain a SQL injection vulnerability via the username parameter at login.php.

NVD Source

Technical Analysis

CVE-2026-29861 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.

A proof-of-concept (PoC) exploit exists for CVE-2026-29861. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.