Paper/Archive/CVE-2026-74253

CVE-2026-74253

regularlabs.com Sourcerer extension for Joomla — Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer < 16.0.0

EPSS 0.3%CVSS 10.0

critical.is priorityof 100

CVSS 10.0 (CNA)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 EPSS percentile 25.4.254 × 205.1 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Sourcerer extension for Joomla1.0.0-15.0.0–CNA

Scores by source

Joomla (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refregularlabs.com