Authentication bypass via concatenated login username
Published Mar 20, 2026 · Updated Mar 20, 2026
SQL injection in PbootCMS 3.2.0 through 3.2.12 allows remote attackers to bypass member authentication via a crafted username. The member login controller concatenates the username into raw checkUsername and login SQL conditions without parameter binding or SQL-safe escaping. The public login endpoint is sufficient, but at least one frontend member account must exist; successful exploitation exposes that member's protected data and functions.
Summary
What happened
SQL injection in PbootCMS 3.2.0 through 3.2.12 allows remote attackers to bypass member authentication via a crafted username. The member login controller concatenates the username into raw checkUsername and login SQL conditions without parameter binding or SQL-safe escaping. The public login endpoint is sufficient, but at least one frontend member account must exist; successful exploitation exposes that member's protected data and functions.
The record
- CVE
- CVE-2026-4508
- Published
- Mar 20, 2026
- Updated
- Mar 20, 2026
- Vendor
- Zhejiang Zoneland Zongheng Network Technology Co., Ltd.
- Product
- PbootCMS
- Classifications
- CWE-89, CWE-74, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 20, 2026CVE publishedPublication date reported by the CVE source.
- Mar 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.2.0
- Affected versionversion=3.2.1
- Affected versionversion=3.2.10
- Affected versionversion=3.2.11
- Affected versionversion=3.2.12
- Affected versionversion=3.2.2
- Affected versionversion=3.2.3
- Affected versionversion=3.2.4
- Affected versionversion=3.2.5
- Affected versionversion=3.2.6
- Affected versionversion=3.2.7
- Affected versionversion=3.2.8
- Affected versionversion=3.2.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- PbootCMS member-login SQL injection proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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