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Vulnerabilities

Vulnerability · CVE-2026-3523

The Apocalypse Meow plugin for WordPress is vulnerable to SQL Injection via the 'type' parameter in all versions up to, and including, 22.1.0.

Published Mar 5, 2026 · catalog updated Jun 17, 2026 · The Apocalypse Meow plugin

Check if you run it

No confirmed exploitation is on record for CVE-2026-3523. EPSS is 0.62%. Act only if a listed version of The Apocalypse Meow plugin is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Apocalypse Meow plugin).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.62%
Remediation
Version ranges on file
Affected products
stated named in the record

The Apocalypse Meow plugin for WordPress is vulnerable to SQL Injection via the 'type' parameter in all versions up to, and including, 22.1.0. This is due to a flawed logical operator in the type validation check on line 261 of ajax.php — the condition uses (AND) instead of (OR), causing the validation to be short-circuited and never evaluated for any non-empty type value. Combined with being called on line 101 which removes protection, attacker-controlled single quotes pass through unescaped into the SQL query on line 298. This makes it possible for authenticated attackers, with Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 22.1.0

How to fix CVE-2026-3523

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-3523. EPSS is 0.62%. Act only if a listed version of The Apocalypse Meow plugin is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 22.1.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-89: SQL Injection. EPSS 0.62%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 5, 2026 · NIST NVD

    Detected

    The Apocalypse Meow plugin for WordPress is vulnerable to SQL Injection via the 'type' parameter in all versions up to, and including, 22.1.0. This is due to a flawed logical operator in the type validation check on line 261 of ajax.php — the condition uses (AND) instead of (OR), causing the validation to be short-circuited and never evaluated for any non-empty type value. Combined with being call

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Apocalypse Meow plugin for WordPress is vulnerable to SQL Injection via the 'type' parameter in all versions up to, and including, 22.1.0. This is due to a flawed logical operator in the type validation check on line 261 of ajax.php — the condition uses (AND) instead of (OR), causing the validation to be short-circuited and never evaluated for any non-empty type value. Combined with being call

Sources

  • CVE.orgVulnerability recordCVE-2026-3523

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-3523

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-3523

    The Apocalypse Meow plugin for WordPress is vulnerable to SQL Injection via the 'type' parameter in all versions up to, and including, 22.1.0. This is due to a flawed logical operator in the type validation check on line 261 of ajax.php — the condition uses (AND) instead of

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.