CVE-2026-103331

MEDIUM 5.3CVE-2026-103331 · Published 28/10/2026 · updated 05/11/2026

In short

CVE-2026-103331 is a MEDIUM (CVSS 5.3) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.23%, higher than 14.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

The UniPAY Payment Gateway For WooCommerce WordPress plugin before 2.4 does not properly verify the authenticity of payment notifications, as their signature is checked against a merchant secret that is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid.

References

wpscan.com/vulnerability/a7d61b5f-9e92-459c-8f6d-1c92ea94ef00

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