CVE-2026-42164

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Mahara before 25.04.5 and 26.04.0 is vulnerable in the Text block/section functionality when a call is crafted in a certain way that allows it to recall the backed-up content from another Text section.

Published 2026-08-17. Last modified 2026-08-31.