EUVD-2026-20453
GHSA-qwrq-9cw3-gcpq
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
WCAPF - WooCommerce Ajax Product Filter plugin is vulnerable to time-based SQL Injection via the 'post-author' parameter in all versions up to, and including, 4.2.3 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
AnalysisAI
Time-based SQL injection in WCAPF (WooCommerce Ajax Product Filter) WordPress plugin versions up to 4.2.3 allows unauthenticated remote attackers to extract sensitive database information via the 'post-author' parameter. The vulnerability stems from inadequate input sanitization and SQL query preparation, enabling attackers to append malicious SQL commands to existing queries. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | WooCommerce Ajax Product Filter plugin versions up to 4.2.3 installed and active. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This represents a critical real-world risk despite the 7.5 CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker identifies a WordPress e-commerce site running WCAPF plugin version 4.2.3 or earlier through plugin enumeration techniques or Wappalyzer-style fingerprinting. The attacker crafts malicious HTTP requests to the AJAX product filter endpoint, injecting time-based SQL payloads into the 'post-author' parameter (e.g., 'post-author=1 AND SLEEP(5)--'). … |
| Remediation | Upgrade immediately to WCAPF version 4.2.4 or later, which addresses the SQL injection vulnerability through proper input sanitization and parameterized query implementation. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all WordPress sites using WCAPF plugin and document current versions via admin dashboard or WP-CLI; disable or deactivate WCAPF on all installations. …
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