VulnSocial

CVE-2026-3645Disclosure

LOWCVSS 5.3 · MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

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.

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1.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-03-21); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-03-21: 2Mentions · 2026-03-31: 1PoC Mentioned / Linked · 2026-03-31: 1Technical Details · 2026-03-21: 103-2103-31
Signal classification3 categories
Disclosure
133.3%
General
133.3%
PoC
133.3%
Referenced assets5 URLs
Classification over time
DateTotalLabels
2026-03-212
Disclosure1General1
2026-03-311
PoC1
Full discourse3 posts
  • Atomic Edge@atomicedgeWAF
    PoC

    https://atomicedge.io/cve-proof/cve-2026-3645-punnel-landing-page-builder-version-1-3-1-medium-vulnerability-proof-of-concept CVE-2026-3645 #WordPress plugin #vulnerability punnel-landing-page-builder https://atomicedge.io/?p=6568 #cybersecurity #wordpressfirewall #wordpressse…

    Post summary

    The post announces a proof-of-concept for CVE-2026-3645 targeting the Punnel Landing Page Builder plugin, but provides no exploit code, patch info, or evidence of active exploitation.

    0000041
    5 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-3645 WordPress Punnel Plugin Unauthorized Configuration Modific... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3645 Don't wait vulnerability scanning results: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=2

    Post summary

    The tweet merely references CVE-2026-3645 and links to a vulnerability details page, providing no additional information regarding PoC, exploitation, or mitigation.

    0000041
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3645 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, w… https://www.cve.org/CVERecord?id=CVE-2026-3645

    Post summary

    CVE-2026-3645 exposes a missing authorization flaw in the Punnel WordPress plugin’s save_config() function across all versions up to 1.3.1.

    0000061
    56.8K followersView on X

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