WWBN AVideo up to 29.7.1 PayPalYPT IPN ipnV2.php improper authentication

Summaryinfo

A vulnerability was found in WWBN AVideo up to 29.7.1 and classified as problematic. This affects an unknown part of the file plugin/PayPalYPT/ipnV2.php of the component PayPalYPT IPN Handler. The manipulation results in improper authentication. This vulnerability was named CVE-2026-126543. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in WWBN AVideo up to 29.7.1. Affected is an unknown code of the file plugin/PayPalYPT/ipnV2.php of the component PayPalYPT IPN Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on integrity. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-126543 since 11/11/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/11/2026).

By approaching the search of inurl:plugin/PayPalYPT/ipnV2.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• WWBN

Name

• AVideo

Version

• 29.7.0
• 29.7.1

License

• open-source

Website

• Product: https://github.com/WWBN/AVideo/

CPE 2.3info

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CPE 2.2info

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