CVE-2026-3523 json
Apocalypse Meow <= 22.1.0 - Authenticated (Administrator+) SQL Injection via 'type' Parameter
published 8mo ago modified 4mo ago also EUVD-2026-9527
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
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 `in_array()` validation to be short-circuited and never evaluated for any non-empty type value. Combined with `stripslashes_deep()` being called on line 101 which removes `wp_magic_quotes()` 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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected products
- blobfolio Apocalypse Meow
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/a1af9757-23e9-41d2-bbcd-15b0610b6538?source=cve
- plugins.trac.wordpress.org /browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L298
- plugins.trac.wordpress.org /browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L298
- plugins.trac.wordpress.org /browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L261
- plugins.trac.wordpress.org /browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L261
- plugins.trac.wordpress.org /browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L101
- plugins.trac.wordpress.org /browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L101
- plugins.trac.wordpress.org /browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L167
- plugins.trac.wordpress.org /browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L167
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3448958%40apocalypse-meow&new=3448958%40apocalypse-meow&sfp_ema
Sources
- CVE List CVE-2026-3523
- NVD CVE-2026-3523
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.