CVE Explorer

CVE-2026-9189

The Contact Form 7 – PayPal & Stripe Add-on plugin for WordPress is vulnerable to Payment Bypass via Insufficient Verification of Data Authenticity in all versions up to, and including, 2.4.9. Although `cf7pp_paypal_ipn_handler()` correctly validates IPN authenticity by posting back to PayPal with `cmd=_notify-validate`, it fails to compare the IPN payload's `mc_gross` (payment amount), `mc_currency`, or `receiver_email` fields against the corresponding stored order values before passing the att

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0babbaa7c48109df69dfe07cfc06ffda4209cee5ad92fec6a033eb64d4b9952d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Contact Form 7 – PayPal & Stripe Add-on","vendor":"scottpaterson","versions":[{"lessThanOrEqual":"2.4.9","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-345","description":"CWE-345 Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/problemTypes/0/descriptions/0

Source references

8 source assertions

{"url":"https://plugins.trac.wordpress.org/browser/contact-form-7-paypal-add-on/tags/2.4.6/includes/payments/functions.php#L31"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/6

{"url":"https://plugins.trac.wordpress.org/browser/contact-form-7-paypal-add-on/tags/2.4.6/includes/payments/paypal_handler.php#L106"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/4

{"url":"https://plugins.trac.wordpress.org/browser/contact-form-7-paypal-add-on/tags/2.4.6/includes/payments/paypal_handler.php#L75"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/5

{"url":"https://plugins.trac.wordpress.org/browser/contact-form-7-paypal-add-on/tags/2.4.8/includes/payments/functions.php#L31"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/3

{"url":"https://plugins.trac.wordpress.org/browser/contact-form-7-paypal-add-on/tags/2.4.8/includes/payments/paypal_handler.php#L106"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/1

{"url":"https://plugins.trac.wordpress.org/browser/contact-form-7-paypal-add-on/tags/2.4.8/includes/payments/paypal_handler.php#L75"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/2

{"url":"https://plugins.trac.wordpress.org/changeset/3551197/contact-form-7-paypal-add-on"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/7

{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5e274781-1c20-4224-bc10-26dadb9b1e07?source=cve"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:73bd850b65f647e33b51b76e4708aa9bb5c1cb5965d4179e32c044d8edf9b8cb · sha256:550638720d804724… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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