GHSA-P6XF-H6C6-2MX9
Vulnerability from github – Published: 2026-03-21 06:30 – Updated: 2026-03-21 06:30
VLAI
Details
The Punnel – Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the 'punnel_save_config' AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's entire configuration including the API key via a POST request to admin-ajax.php. Once the API key is known (because the attacker set it), the attacker can use the plugin's public API endpoint (sniff_requests() at /?punnel_api=1) — which only validates requests by comparing a POST token against the stored api_key — to create, update, or delete arbitrary posts, pages, and products on the site.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-3645"
],
"database_specific": {
"cwe_ids": [
"CWE-862"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-21T04:17:33Z",
"severity": "MODERATE"
},
"details": "The Punnel \u2013 Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. The save_config() function, which handles the \u0027punnel_save_config\u0027 AJAX action, lacks any capability check (current_user_can()) and nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin\u0027s entire configuration including the API key via a POST request to admin-ajax.php. Once the API key is known (because the attacker set it), the attacker can use the plugin\u0027s public API endpoint (sniff_requests() at /?punnel_api=1) \u2014 which only validates requests by comparing a POST token against the stored api_key \u2014 to create, update, or delete arbitrary posts, pages, and products on the site.",
"id": "GHSA-p6xf-h6c6-2mx9",
"modified": "2026-03-21T06:30:25Z",
"published": "2026-03-21T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3645"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L118"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L156"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L179"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L403"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php#L410"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L118"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L156"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L179"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L403"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php#L410"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b6f54ca4-297f-44e8-8bb3-25cdc52f94ff?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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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