What is CVE-2026-2549?

CVE-2026-2549 is a high-severity vulnerability in Zhanghuanhao Librarysystem 图书馆管理系统, classified under Incorrect Privilege Assignment. CVSS score: 7.3/10. Published 2026-02-16.

How severe is CVE-2026-2549?

High severity. CVSS v3 base score is 7.3 out of 10.

Privilege escalation in Zhanghuanhao Librarysystem 图书馆管理系统

CVE-2026-2549

A vulnerability has been found in zhanghuanhao LibrarySystem 图书馆管理系统 up to 1.1.1. This impacts an unknown function of the file BookController.java. The manipulation leads to improper access controls. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Published 2026-02-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (39.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Zhanghuanhao Librarysystem 图书馆管理系统 — versions 1.1.0, 1.1.1

Weakness classification (CWE)

References

vuldb.com/ (technical-description, vdb-entry)
vuldb.com/ (signature, permissions-required)
vuldb.com/ (third-party-advisory)
github.com/zhanghuanhao/LibrarySystem/issues/32 (issue-tracking)
github.com/zhanghuanhao/LibrarySystem/issues/32 (issue-tracking, exploit)

Frequently asked questions

What is CVE-2026-2549?: CVE-2026-2549 is a high-severity vulnerability in Zhanghuanhao Librarysystem 图书馆管理系统, classified under Incorrect Privilege Assignment. CVSS score: 7.3/10. Published 2026-02-16.
How severe is CVE-2026-2549?: High severity. CVSS v3 base score is 7.3 out of 10.