CVE-2026-77765

Better Payment < 2.3.4 - Unauthenticated Payment Amount Manipulation

The Better Payment WordPress plugin before 2.3.4 does not validate the submitted payment amount server-side against the merchant's configured fixed price before building the gateway charge, allowing unauthenticated users to pay an arbitrary reduced amount for a fixed-price item.

Affected

Better Payment

CVSS v3.1 CNA

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.22% chance of exploitation in the next 30 days, 12th percentile

Published

2026-09-23

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/932f8c74-1ded-40ee-b1fd-a328f3626f21/

References

• CVE Record
• NVD entry