CVE-2026-126543 (CVSS 7.5)

Description

WWBN AVideo through 29.7.1 contains an improper payment verification vulnerability in plugin/PayPalYPT/ipnV2.php that credits wallets from PayPal IPNs not bound to the site's merchant account. Unauthenticated attackers can forward genuine VERIFIED recurring-payment IPNs from their own PayPal account with a chosen users_id to add wallet balance each billing cycle.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-345 CWE-345

References

Other References

https://github.com/WWBN/AVideo/blob/v29.7.1/plugin/PayPalYPT/ipnV2.php#L87-L125 https://github.com/WWBN/AVideo/commit/98406b7944e035e72082665ac886d78fc3af0a7f https://github.com/WWBN/AVideo/security/advisories/GHSA-5gg3-9jhh-xf86 https://www.vulncheck.com/advisories/wwbn-avideo-through-29.7.1-wallet-credit-manipulation-via-paypalypt-ipnv2-php

Frequently Asked Questions

What is CVE-2026-126543? +

WWBN AVideo through 29.7.1 contains an improper payment verification vulnerability in plugin/PayPalYPT/ipnV2.php that credits wallets from PayPal IPNs not bound to the site's merchant account. Unauthenticated attackers can forward genuine VERIFIED recurring-payment IPNs from their own PayPal account with a chosen users_id to add wallet balance each billing cycle. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-126543? +

CVE-2026-126543 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-126543? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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