CVE-2026-25237: PEAR Pearweb

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, use of preg_replace() with the /e modifier in bug update email handling can enable PHP code execution if attacker-controlled content reaches the evaluated replacement. This issue has been patched in version 1.33.0.

Affected products

• PEAR Pearweb: before 1.33.0 (fixed in 1.33.0)

Published 2026-02-03. Last modified 2026-06-17.