Database disclosure via unescaped column identifier
Published Mar 18, 2026 · Updated Mar 18, 2026
SQL injection in Kanboard before 1.2.51 allows remote authenticated users with project user-management permission to read the database. The ProjectPermissionController addUser action passes the external_id_column POST value to getOrCreateExternalUserId, whose eq query treats it as a column identifier; escapeIdentifier returns it unchanged when it contains a space or dot. Permission to add users to a project is required, and crafted conditional expressions can disclose all database contents, including API tokens usable for account privilege escalation.
Summary
What happened
SQL injection in Kanboard before 1.2.51 allows remote authenticated users with project user-management permission to read the database. The ProjectPermissionController addUser action passes the external_id_column POST value to getOrCreateExternalUserId, whose eq query treats it as a column identifier; escapeIdentifier returns it unchanged when it contains a space or dot. Permission to add users to a project is required, and crafted conditional expressions can disclose all database contents, including API tokens usable for account privilege escalation.
The record
- CVE
- CVE-2026-33058
- Published
- Mar 18, 2026
- Updated
- Mar 18, 2026
- Vendor
- Kanboard
- Product
- Kanboard
- Classifications
- CWE-89, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 18, 2026CVE publishedPublication date reported by the CVE source.
- Mar 18, 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=< 1.2.51
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- Authenticated blind SQL injection Python proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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