Improper Access Control in zhanghuanhao LibrarySystem by zhanghuanhao
CVE-2026-2549

6.9MEDIUM

Key Information:

Vendor

Zhanghuanhao

Status
Librarysystem 图书馆管理系统
Vendor
CVE Published:
16 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2549?

An improper access control vulnerability has been identified in the zhanghuanhao LibrarySystem, specifically within the BookController.java file. This flaw allows an attacker to manipulate access controls, potentially enabling unauthorized actions through remote exploitation. Although the vulnerability was reported, there has been no response from the maintainers. Users should be aware of the risks associated with this vulnerability and take immediate action to mitigate any potential threats.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

LibrarySystem 图书馆管理系统 1.1.0

LibrarySystem 图书馆管理系统 1.1.1

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-2026-2549 - Proof of Concept

References

https://vuldb.com/?id.346158
vdb-entry
https://vuldb.com/?ctiid.346158
signaturepermissions-required
https://vuldb.com/?submit.749873
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Jszdk (VulDB User)
JSON
.