Punnel <= 1.3.1 - Missing Authorization to Authenticated (Subscriber+) Settings Update via 'punnel_save_config' AJAX Action

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-3645
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-21 04:17:33 UTC
Updated2026-04-24 16:27:44 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.000620000 probability, percentile 0.192340000 (date 2026-04-26)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Punnel Punnel Landing Page Builder affected 1.3.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/b6f54ca4-297f-44e8-8bb3-25cdc... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/trunk/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/punnel-landing-page-builder/tags/1.3.1/punnel.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Phong Nguyen (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-20T15:09:24.000ZDisclosed
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