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CVE-2026-90487— Xuxueli xxl-job JobGroupController.java privileges management

Quick assessment

Affected
Xuxueli xxl-job
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

xuxueli XXL-JOB是中国xuxueli个人开发者开源的一个分布式任务调度平台。 xuxueli XXL-JOB 3.4.2及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于文件JobGroupController.java中某些功能操作导致权限管理不当，攻击者可远程发起攻击，可能导致权限提升。

CVSS 4.3 · Medium EPSS 0.35% · P28

Affected Version Matrix 3

VendorProduct Version RangeStatus
Xuxueli xxl-job 3.4.0 affected
3.4.1 affected
3.4.2 affected
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I. Basic Information for CVE-2026-90487

Vulnerability Information
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Vulnerability Title
Xuxueli xxl-job JobGroupController.java privileges management
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Xuxueli xxl-job up to 3.4.2. Affected by this issue is some unknown functionality of the file xxl-job-admin/src/main/java/com/xxl/job/admin/business/controller/JobGroupController.java. The manipulation results in improper privilege management. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
xuxueli XXL-JOB 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
xuxueli XXL-JOB是中国xuxueli个人开发者开源的一个分布式任务调度平台。 xuxueli XXL-JOB 3.4.2及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于文件JobGroupController.java中某些功能操作导致权限管理不当，攻击者可远程发起攻击，可能导致权限提升。
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
Xuxueli xxl-job 3.4.0 cpe:2.3:a:xuxueli:xxl-job:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-90487

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
default-local-qwen3.6 · 10154 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-90487

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Proof of Concept for CVE-2026-90487 (1)

Same Patch Batch · Xuxueli · 2026-09-12 · 3 CVEs total

CVE-2026-90488 6.3 MEDIUM Xuxueli xxl-job GlueFactory.java GroovyClassLoader.parseClass code injection
CVE-2026-90489 3.5 LOW Xuxueli xxl-job insert cross site scripting

IV. Related Vulnerabilities

Same product: xxl-job
Same vendor: Xuxueli
Same weakness: CWE-269