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CVE-2026-57859— e107 Second-Order Code Execution via eval()-Based Deserialization in e_array::unserialize()

Quick assessment

Affected
e107inc e107
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.

e107是E107组织开源的一套开源、免费且基于PHP和MySQL的内容管理系统(CMS)。该系统支持多种插件和外观主题,可作为个人博客、讨论社区、档案资料库等。 e107 2.3.8之前版本存在反序列化注入漏洞，该漏洞源于反序列化处理程序e_array中存在代码执行漏洞，由于e_array::unserialize()函数仅对字符串'array'进行前缀检查后传递给eval()，导致攻击者利用带外数据库写权限存储特制payload在user_prefs列，当用户偏好通过e_user_pref::load

CVSS 7.5 · High EPSS 0.66% · P50

Affected Version Matrix 2

VendorProduct Version RangeStatus
e107inc e107 ≤ 2.3.7 affected
2.3.8 unaffected
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I. Basic Information for CVE-2026-57859

Vulnerability Information
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Vulnerability Title
e107 Second-Order Code Execution via eval()-Based Deserialization in e_array::unserialize()
Source: CVE Program / CVE List V5
Vulnerability Description
e107 prior to version 2.3.8 contains a code execution vulnerability in the e_array deserialization handler that allows an attacker with out-of-band database write access to execute arbitrary PHP code by storing a crafted payload in the user_prefs column. The e_array::unserialize() function in e107_handlers/core_functions.php performs only a prefix check for the string 'array' before passing the stored value to eval(), causing automatic PHP execution whenever the affected user's preferences are materialized through e_user_pref::load().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
e107 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
e107是E107组织开源的一套开源、免费且基于PHP和MySQL的内容管理系统(CMS)。该系统支持多种插件和外观主题,可作为个人博客、讨论社区、档案资料库等。 e107 2.3.8之前版本存在反序列化注入漏洞，该漏洞源于反序列化处理程序e_array中存在代码执行漏洞，由于e_array::unserialize()函数仅对字符串'array'进行前缀检查后传递给eval()，导致攻击者利用带外数据库写权限存储特制payload在user_prefs列，当用户偏好通过e_user_pref::load
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
e107inc e107 0 ~ 2.3.7 -

II. Public POCs for CVE-2026-57859

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III. Intelligence Information for CVE-2026-57859

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Patches & Fixes for CVE-2026-57859 (1)

Vendor Advisories for CVE-2026-57859 (2)

Other References for CVE-2026-57859 (1)

IV. Related Vulnerabilities

Same product: e107
Same vendor: e107inc
Same weakness: CWE-502

V. Comments for CVE-2026-57859

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