Formidable Forms 6.34 - Unauthenticated Stored Content Injection via 'updated_by' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- 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-345.
Summary
The Formidable Forms WordPress plugin before 6.35 does not restrict who can set the identifier recording which user last edited a form entry, and relies on that identifier when deciding whether to strip HTML from stored entry values, allowing unauthenticated visitors to have markup rendered in the admin entry view that would otherwise be removed, and to attribute their submission to an administrator who never made it.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 | Formidable Forms | 6.34 to before 6.35 | 6.35 | Patch available | CNA |
- Formidable Forms VendorUnknown Affected 6.34 to before 6.35 Fixed in 6.35 Patch available CNA
Remediation
- Fix · CNA Formidable Forms (Unknown) Fixed in 6.35
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Formidable Forms 6.35
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-16102 Formidable Forms < 6.35 - Unauthenticated Arbitrary Shortcode Execution via [entry_key] Custom HTML TokenPriority MEDIUM 55
Timeline
- 2026-10-02 Threatist record created from CVE-2026-85641
- 2026-10-03 Alias added: GHSA-c92r-vvxr-8r78
References
Sources
- CVE-2026-85641 · CVE Program
- CVE-2026-85641 · NVD
- FIRST EPSS
- GHSA-c92r-vvxr-8r78 · 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