VulnSocial

CVE-2026-2428Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in all versions up to, and including, 6.1.17. This is due to the PayPal IPN (Instant Payment Notification) verification being disabled by default (`disable_ipn_verification` defaults to `'yes'` in `PayPalSettings.php`). This makes it possible for unauthenticated attackers to send forged PayPal IPN notifications to the publicly accessible IPN endpoint, marking unpaid form submissions as "paid" and triggering post-payment automation (emails, access grants, digital product delivery).

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-345

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked 1d ago at 2 mentions (2026-02-27); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-02-27: 2Mentions · 2026-03-04: 1Technical Details · 2026-02-27: 2Technical Details · 2026-03-04: 102-2703-04
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-02-272
Disclosure2
2026-03-041
Disclosure1
Full discourse3 posts
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-2428 (CVSS:7.5, HIGH) is Awaiting Analysis. The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in..https://nvd.nist.gov/vuln/detail/CVE-2026-2428 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The post announces CVE-2026-2428, a high‑severity vulnerability in the Fluent Forms Pro Add On Pack plugin, noting its CVSS score and type but providing no exploit or patch details.

    0000023
    173 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-2428 The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in all versions up to, and including, 6.1.17. This… https://www.cve.org/CVERecord?id=CVE-2026-2428

    Post summary

    The post announces CVE-2026-2428, a data authenticity verification issue in the Fluent Forms Pro Add On Pack plugin up to version 6.1.17, without providing any PoC, exploit, or mitigation details.

    00000102
    56.6K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-2428 Unauthenticated PayPal IPN Verification Bypass in Fluent Forms Pro WordPress Plugin https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-2428

    Post summary

    CVE-2026-2428 exposes an unauthenticated PayPal IPN verification bypass in the Fluent Forms Pro WordPress plugin; no PoC, exploit, or patch details are provided.

    0000038
    4.0K followersView on X

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