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CVE-2021-24465 - Before 4 Plugin

CVE-2021-24465

The Meow Gallery WordPress plugin before 4.1.9 does not sanitise, validate or escape the ids attribute of its gallery shortcode (available for users as low as Contributor) before using it in an SQL statement, leading to an authenticated SQL Injection issue. The injection also allows the returned values to be manipulated in a way that could lead to data disclosure and arbitrary objects to be deserialized.

CVE-2021-24465

HIGH CVSS 8.1 Published 2021-10-04 Updated 2024-11-21
AI Risk Elevated (73/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority
Severity Band HIGH
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected Components 2
Reference Links 1
AI Risk Engine Elevated (73/100)
Exploitability High
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2021-10-04 CVE published and first recorded in the threat feed.
  2. 2024-11-21 Record updated with latest vulnerability metadata.
  3. 2026-04-11 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 5 days ago

AI enriched 5 days ago (2026-04-11 00:52 UTC)

Technical Summary

The Meow Gallery WordPress plugin before 4.1.9 does not sanitise, validate or escape the ids attribute of its gallery shortcode (available for users as low as Contributor) before using it in an SQL statement, leading to an authenticated SQL Injection issue. The injection also allows the returned values to be manipulated in a way that could lead to data disclosure and arbitrary objects to be deserialized.

Potential Impact

Severity is HIGH (CVSS 8.1). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on severity and technical exposure profile.

Primary risk drivers: severity and technical exposure profile

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 73/100 (Elevated, High) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Before 4 PLUGIN · before-4 Affected: < 4.1.9 Fixed in: 4.1.9
Meow Gallery PLUGIN · meow-gallery Affected: < 4.1.9 Fixed in: 4.1.9
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