CVE-2026-25237

PEAR is Vulnerable to PHP Code Execution via preg_replace /e in Bug Update Emails

Published: Feb 3, 2026Updated: Feb 5, 2026 Sources: CVE List NVDCWE-624

NVD MITRE

9.8CVSSCRITICAL

Description

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.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-624

Affected Products

pearweb pear

Library

OSS Libraries / web-framework

peaross-projectOSS Librariesaka pearweb, pear (php)

Exploitability

Official Patch Available

References

https://github.com/pear/pearweb/security/advisories/GHSA-vhw6-hqh9-8r23

github.com

Timeline

Published

Feb 3, 2026

Last Updated

Feb 5, 2026

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