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Vulnerability record

CVE-2026-126543

highCVSS 4.0 8.7Published · WWBN

The short answer

CVE-2026-126543 affects WWBN AVideo and is rated high (CVSS 8.7). It is not in CISA's Known Exploited Vulnerabilities catalog.

What it is

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.

Weakness: CWE-345.

Severity

8.7 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploited (CISA KEV)

Not listed

CISA lists confirmed exploitation only

EPSS, next 30 days

No score

FIRST scores CVEs within a day of publication

How it can be exploited

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
None
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Affected products

AVideo. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-126543 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-11.

How do I fix CVE-2026-126543?

Follow the vendor advisory in the references below. NVD lists the affected versions under its configurations.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Deferred. The description is NVD's text, quoted as published.

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