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CVE-2026-49954— Discuz! X5.0 Local File Inclusion via enable_disable.php Plugin Directory

Quick assessment

Affected
Discuz! Discuz! X5.0
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.

Discuz! X5.0是Discuz!团队的一款PHP网络论坛程序。 Discuz! X5.0 20260320版本至20260610版本存在代码注入漏洞，该漏洞源于导入包含路径遍历序列的特制插件配置，允许已认证管理员通过触发插件安装异常绕过清理导致恶意路径传递至include函数，结合文件上传功能执行任意代码。

CVSS 7.2 · High EPSS 0.74% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
Discuz! Discuz! X5.0 20260320≤ 20260610 affected
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I. Basic Information for CVE-2026-49954

Vulnerability Information
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Vulnerability Title
Discuz! X5.0 Local File Inclusion via enable_disable.php Plugin Directory
Source: CVE Program / CVE List V5
Vulnerability Description
Discuz! X5.0 releases 20260320 through 20260610 contain a local file inclusion vulnerability that allows authenticated administrators to execute arbitrary code by importing a specially crafted plugin configuration containing path traversal sequences in the directory attribute. Attackers can trigger an exception during plugin installation to bypass sanitization routines, causing malicious paths to be stored unsanitized and subsequently passed to include(), which combined with file upload functionality escalates to arbitrary code execution in the context of the web server user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
PHP程序中Include/Require语句包含文件控制不恰当(PHP远程文件包含)
Source: CVE Program / CVE List V5
Vulnerability Title
Discuz! X5.0 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discuz! X5.0是Discuz!团队的一款PHP网络论坛程序。 Discuz! X5.0 20260320版本至20260610版本存在代码注入漏洞，该漏洞源于导入包含路径遍历序列的特制插件配置，允许已认证管理员通过触发插件安装异常绕过清理导致恶意路径传递至include函数，结合文件上传功能执行任意代码。
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
Discuz! Discuz! X5.0 20260320 ~ 20260610 -

II. Public POCs for CVE-2026-49954

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III. Intelligence Information for CVE-2026-49954

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Vendor Advisories for CVE-2026-49954 (2)

Same Patch Batch · Discuz! · 2026-06-15 · 3 CVEs total

CVE-2026-49952 9.1 CRITICAL Discuz! X5.0 Authentication Bypass via dbbak.php Encryption Oracle
CVE-2026-49953 6.5 MEDIUM Discuz! X5.0 CAPTCHA Bypass via Predictable Character Set

IV. Related Vulnerabilities

Same product: Discuz! X5.0
Same vendor: Discuz!
Same weakness: CWE-98

V. Comments for CVE-2026-49954

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