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CVE-2026-25237

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Date: February 3, 2026

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.

Severity Score

Related Resources (3)

https://github.com/pear/pearweb/security/advisories/GHSA-vhw6-hqh9-8r23
https://nvd.nist.gov/vuln/detail/CVE-2026-25237
https://www.mend.io/vulnerability-database/CVE-2026-25237

Severity Score

Weakness Type (CWE)

Executable Regular Expression Error

CWE-624

Top Fix

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Upgrade Version

Upgrade to version https://github.com/pear/pearweb.git - pearweb-1.33.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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