SureForms < 2.11.1 - Unauthenticated Payment Amount Bypass
Priority MEDIUM 60Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The SureForms WordPress plugin before 2.11.1 does not properly validate the payment amount on forms that use a dynamically-sourced (variable/hidden) payment amount, allowing unauthenticated users to underpay for the configured product or subscription. Forms using a fixed configured price are not affected.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00293 22nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed SureForms (Unknown): 2.11.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- 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 | SureForms | before 2.11.1 | 2.11.1 | Patch available | CNA |
- SureForms VendorUnknown Affected before 2.11.1 Fixed in 2.11.1 Patch available CNA
Remediation
- Fix · CNA SureForms (Unknown) Fixed in 2.11.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-11567
- 2026-10-03 Alias added: GHSA-9r96-r77r-wwjr
References
Sources
- CVE-2026-11567 · CVE Program
- CVE-2026-11567 · NVD
- FIRST EPSS
- GHSA-9r96-r77r-wwjr · 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