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CVE-2026-25237— PEAR is Vulnerable to PHP Code Execution via preg_replace /e in Bug Update Emails

Quick assessment

Affected
pear pearweb
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

pearweb是PEAR开源的一个 PHP 扩展和应用程序存储库。 pearweb 1.33.0之前版本存在安全漏洞，该漏洞源于在错误更新电子邮件处理中使用带/e修饰符的preg_replace函数，可能导致PHP代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-25237

Vulnerability Information
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Vulnerability Title
PEAR is Vulnerable to PHP Code Execution via preg_replace /e in Bug Update Emails
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
可执行体正则表达式错误
Source: CVE Program / CVE List V5
Vulnerability Title
pearweb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pearweb是PEAR开源的一个 PHP 扩展和应用程序存储库。 pearweb 1.33.0之前版本存在安全漏洞，该漏洞源于在错误更新电子邮件处理中使用带/e修饰符的preg_replace函数，可能导致PHP代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pear pearweb < 1.33.0 -

II. Public POCs for CVE-2026-25237

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III. Intelligence Information for CVE-2026-25237

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Same Patch Batch · pear · 2026-02-03 · 9 CVEs total

CVE-2026-25241 PEAR is Vulnerable to SQL Injection in /get/<package>/<version> Endpoint
CVE-2026-25239 PEAR is Vulnerable to SQL Injection in apidoc_queue Insert via Unescaped Filename
CVE-2026-25236 PEAR is Vulnerable to SQL Injection in Damblan_Karma IN() Query via Literal Substitution
CVE-2026-25235 PEAR Has a Predictable Verification Hash in Election Account Requests
CVE-2026-25233 PEAR Has a Roadmap Authorization Bypass via Operator Precedence Bug
CVE-2026-25240 PEAR is Vulnerable to SQL Injection in user::maintains() Role IN() Filter
CVE-2026-25234 PEAR is Vulnerable to SQL Injection in Category Deletion
CVE-2026-25238 PEAR is Vulnerable to SQL Injection in Bug Subscription Deletion via Weak Email Validation

IV. Related Vulnerabilities

Same product: pearweb
Same vendor: pear
Same weakness: CWE-624

V. Comments for CVE-2026-25237

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