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CVE-2026-5999— JeecgBoot SysAnnouncementController improper authorization

Quick assessment

Affected
n/a JeecgBoot
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.

JeecgBoot是中国国炬（Jeecg）公司的一个适用于企业 Web 应用程序的 Java 低代码平台。 JeecgBoot 3.9.1及之前版本存在授权问题漏洞，该漏洞源于授权不当，可能导致权限提升。

CVSS 6.3 · Medium EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-5999

Vulnerability Information
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Vulnerability Title
JeecgBoot SysAnnouncementController improper authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in JeecgBoot up to 3.9.1. This impacts an unknown function of the component SysAnnouncementController. Such manipulation leads to improper authorization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor confirmed the issue and will provide a fix in the upcoming release.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
JeecgBoot 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JeecgBoot是中国国炬（Jeecg）公司的一个适用于企业 Web 应用程序的 Java 低代码平台。 JeecgBoot 3.9.1及之前版本存在授权问题漏洞，该漏洞源于授权不当，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
- JeecgBoot 3.9.0 -

II. Public POCs for CVE-2026-5999

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III. Intelligence Information for CVE-2026-5999

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Vendor Advisories for CVE-2026-5999 (2)

Proof of Concept for CVE-2026-5999 (1)

News Coverage for CVE-2026-5999 (1)

Vendor Pages for CVE-2026-5999 (1)

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IV. Related Vulnerabilities

Same product: JeecgBoot
Same vendor: n/a
Same weakness: CWE-285

V. Comments for CVE-2026-5999

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