CVE Catalog

CVE-2026-74253

CriticalCVSS 10.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.32%

25th percentile - higher than 25% of all known CVEs

Summary

Joomla Extension Sourcerer by Regular Labs before version 16.0.0 processes {source} blocks found in Joomla's final rendered HTML without reliably determining where that code originated, allowing unauthenticated remote code execution through unverified reflected user input.

Risk Assessment

An attacker could execute arbitrary code on the server, leading to complete compromise of the Joomla site and data.

Recommendation

Update the Sourcerer extension to version 16.0.0 or later. Restrict use of {source} blocks and validate user input.

Related vulnerabilities

Original NVD description (English source)

Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer < 16.0.0 - Regular Labs Sourcerer before 16.0.0 processes {source} blocks found in Joomla’s final rendered HTML without reliably determining where that code originated.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS