Concrete CMS 9 before 9.5.3 did not escape SQL LIKE wildcard characters in the keyword search filters used by the file manager, file folders, and… (CVE-2026-68531)
Concrete CMS versions prior to 9.5.3 do not properly escape SQL LIKE wildcard characters in keyword search filters used by the file manager, file folders, and page list. This allows authenticated users with editor-level or higher privileges to craft searches that cause the database to perform full-table scans, leading to elevated CPU and I/O usage and degraded responsiveness on large installations. The vulnerability has a low severity rating and does not involve remote code execution or data disclosure.
AI Analysis
Technical Summary
Concrete CMS versions before 9.5.3 fail to neutralize SQL LIKE wildcard metacharacters in keyword search filters for file manager, file folders, and page list. An authenticated user with editor or higher privileges can submit crafted searches containing many single-character wildcards. Because the input is directly used in the LIKE clause without escaping, this can force the database to evaluate every row, causing full-table scans and sustained high database resource usage. The Concrete CMS security team assigned this vulnerability a CVSS v4.0 score of 2.1, indicating low severity.
Potential Impact
An authenticated user with editor-level or higher privileges can degrade database performance by causing full-table scans through crafted search queries. This results in elevated CPU and I/O load on the database, which can reduce responsiveness for other users, especially on large installations. There is no indication of data leakage, privilege escalation, or remote code execution.
Mitigation Recommendations
A fix is available in Concrete CMS version 9.5.3. Users should upgrade to version 9.5.3 or later to resolve this issue. No other mitigation actions are indicated by the vendor advisory.
Concrete CMS 9 before 9.5.3 did not escape SQL LIKE wildcard characters in the keyword search filters used by the file manager, file folders, and… (CVE-2026-68531)
Description
Concrete CMS versions prior to 9.5.3 do not properly escape SQL LIKE wildcard characters in keyword search filters used by the file manager, file folders, and page list. This allows authenticated users with editor-level or higher privileges to craft searches that cause the database to perform full-table scans, leading to elevated CPU and I/O usage and degraded responsiveness on large installations. The vulnerability has a low severity rating and does not involve remote code execution or data disclosure.
CVSS v4.0
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Concrete CMS versions before 9.5.3 fail to neutralize SQL LIKE wildcard metacharacters in keyword search filters for file manager, file folders, and page list. An authenticated user with editor or higher privileges can submit crafted searches containing many single-character wildcards. Because the input is directly used in the LIKE clause without escaping, this can force the database to evaluate every row, causing full-table scans and sustained high database resource usage. The Concrete CMS security team assigned this vulnerability a CVSS v4.0 score of 2.1, indicating low severity.
Potential Impact
An authenticated user with editor-level or higher privileges can degrade database performance by causing full-table scans through crafted search queries. This results in elevated CPU and I/O load on the database, which can reduce responsiveness for other users, especially on large installations. There is no indication of data leakage, privilege escalation, or remote code execution.
Mitigation Recommendations
A fix is available in Concrete CMS version 9.5.3. Users should upgrade to version 9.5.3 or later to resolve this issue. No other mitigation actions are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-mcfm-6jvw-6qf6
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-68531"]
- Database Specific Severity
- LOW
- Cvss Version
- 4.0
Threat ID: 6aaa07ef55bf5e2cf5ea434d
Added to database: 09/16/2026, 03:07:27 UTC
Last enriched: 09/16/2026, 03:33:53 UTC
Last updated: 09/16/2026, 03:33:53 UTC
Views: 2
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