Vulnerability DatabaseCVE-2026-126543
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-126543
Published:November 11, 2026
Updated:November 13, 2026
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.
Related Resources (7)
https://github.com/WWBN/AVideo/security/advisories/GHSA-5gg3-9jhh-xf86
https://github.com/WWBN/AVideo/commit/98406b7944e035e72082665ac886d78fc3af0a7f
https://nvd.nist.gov/vuln/detail/CVE-2026-126543
https://github.com/WWBN/AVideo
https://github.com/WWBN/AVideo/blob/v29.7.1/plugin/PayPalYPT/ipnV2.php#L87-L125
https://www.vulncheck.com/advisories/wwbn-avideo-through-29.7.1-wallet-credit-manipulation-via-paypalypt-ipnv2-php
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126543.json
Do you need more information?
Contact Us
CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Insufficient Verification of Data Authenticity
CWE-345
EPSS
Base Score:
0.24