Missing Authorization Vulnerability in JeecgBoot Product
CVE-2026-108883

7.1HIGH

Key Information:

Vendor

Jeecgboot

Status
Jeecgboot
Vendor
CVE Published:
11 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108883?

JeecgBoot version 3.9.5 is affected by a missing authorization vulnerability in the editThirdAppConfig handler. This flaw allows any authenticated user, including those with low privileges, to modify critical configurations of third-party applications. Specifically, unauthorized users can alter configurations related to DingTalk, WeCom, or Feishu integrations. This unauthorized access enables attackers to replace sensitive identifiers such as client id, client secret, agent id, and corp id, potentially redirecting directory synchronization and messaging functionalities to applications under their control. This vulnerability poses significant risks to data integrity and the security of integrated applications.

Affected Version(s)

JeecgBoot 0 <= 3.9.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108883 - Proof of Concept

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1...
exploit
https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe19...
technical-description
https://www.vulncheck.com/advisories/jeecgboot-through-3....
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yaqi Chao
.