CVE-2025-13384Network attack vector

Payment confirmation forgery via unauthenticated IPN endpoint

Published Nov 22, 2025 · Updated Apr 8, 2026

Missing authorization in CP Contact Form with PayPal 1.3.56 and earlier allows remote attackers to forge payment confirmations. The cp_contactformpp_ipncheck endpoint accepts arbitrary payment_status, txn_id, and payer_email POST values without authentication, nonce checks, or PayPal IPN signature validation. No account or user interaction is required; a forged request changes a stored submission from unpaid to paid without a PayPal transaction.

CVSS severity7.5
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in CP Contact Form with PayPal 1.3.56 and earlier allows remote attackers to forge payment confirmations. The cp_contactformpp_ipncheck endpoint accepts arbitrary payment_status, txn_id, and payer_email POST values without authentication, nonce checks, or PayPal IPN signature validation. No account or user interaction is required; a forged request changes a stored submission from unpaid to paid without a PayPal transaction.

The record

CVE
CVE-2025-13384
Published
Nov 22, 2025
Updated
Apr 8, 2026
Vendor
CodePeople
Product
CP Contact Form with PayPal
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.3.56

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CodePeople · CP Contact Form with PayPalversion=0 <=1.3.56

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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