GHSA-3887-VHG9-78QG
Vulnerability from github – Published: 2026-03-05 06:30 – Updated: 2026-03-05 06:30
VLAI
Details
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.
Severity
4.9 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-3523"
],
"database_specific": {
"cwe_ids": [
"CWE-89"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-05T05:16:37Z",
"severity": "MODERATE"
},
"details": "The Apocalypse Meow plugin for WordPress is vulnerable to SQL Injection via the \u0027type\u0027 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 \u2014 the condition uses `\u0026\u0026` (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.",
"id": "GHSA-3887-vhg9-78qg",
"modified": "2026-03-05T06:30:22Z",
"published": "2026-03-05T06:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3523"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L101"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L167"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L261"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/tags/22.1.0/lib/blobfolio/wp/meow/ajax.php#L298"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L101"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L167"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L261"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/apocalypse-meow/trunk/lib/blobfolio/wp/meow/ajax.php#L298"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3448958%40apocalypse-meow\u0026new=3448958%40apocalypse-meow\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a1af9757-23e9-41d2-bbcd-15b0610b6538?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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