What is CVE-2026-77765?

CVE-2026-77765 is a medium-severity vulnerability in Better Payment, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-09-23.

How severe is CVE-2026-77765?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Better Payment

CVE-2026-77765

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.

Published 2026-09-23 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.5th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Better Payment

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

wpscan.com/vulnerability/932f8c74-1ded-40ee-b1fd-a328f3626f21/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-77765?: CVE-2026-77765 is a medium-severity vulnerability in Better Payment, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-09-23.
How severe is CVE-2026-77765?: Medium severity. CVSS v3 base score is 5.3 out of 10.