CVE-2024-43236Network attack vector

Unauthenticated user redirection via unvalidated rf parameter

Published Aug 19, 2024 · Updated Apr 28, 2026

Open redirection in Easy PayPal & Stripe Buy Now Button 1.9 and earlier allows remote attackers to redirect users via crafted requests. The redirect handler accepts the rf parameter as a destination without sufficient validation before directing the browser to that URL. Exploitation requires a user to act on attacker-controlled content and can send that user from a trusted WordPress site to a phishing site.

CVSS severity4.7
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirection in Easy PayPal & Stripe Buy Now Button 1.9 and earlier allows remote attackers to redirect users via crafted requests. The redirect handler accepts the rf parameter as a destination without sufficient validation before directing the browser to that URL. Exploitation requires a user to act on attacker-controlled content and can send that user from a trusted WordPress site to a phishing site.

The record

CVE
CVE-2024-43236
Published
Aug 19, 2024
Updated
Apr 28, 2026
Vendor
Scott Paterson
Product
Easy PayPal & Stripe Buy Now Button
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=1.9 changes=[{"at":"1.9.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Scott Paterson · Easy PayPal & Stripe Buy Now Buttonversion=n/a <=1.9 changes=[{"at":"1.9.1","status":"unaffected"}]

Published CVSS scores

4.7PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

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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