Better Payment < 2.3.4 - Unauthenticated Payment Amount Manipulation
Priority LOW 30CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Better Payment (Unknown): 2.3.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Better Payment | before 2.3.4 | 2.3.4 | Patch available | CNA |
- Better Payment VendorUnknown Affected before 2.3.4 Fixed in 2.3.4 Patch available CNA
Remediation
- Fix · CNA Better Payment (Unknown) Fixed in 2.3.4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77765
- 2026-10-03 Alias added: GHSA-h7x3-7cw4-64m2
References
Sources
- CVE-2026-77765 · CVE Program
- CVE-2026-77765 · NVD
- FIRST EPSS
- GHSA-h7x3-7cw4-64m2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences