Ninja Forms 3.15.3 - Unauthenticated Stored XSS via Paragraph Text Field in Submissions Admin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Ninja Forms WordPress plugin 3.15.3 does not escape submitted form field values before outputting them on the submission edit screen in the admin area, which could allow unauthenticated users to submit values through a public form that then execute in the browser of any high-privileged user who reviews the submission.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | Ninja Forms | 3.15.3 to before 3.15.4 | 3.15.4 | Patch available | CNA |
- Ninja Forms VendorUnknown Affected 3.15.3 to before 3.15.4 Fixed in 3.15.4 Patch available CNA
Remediation
- Fix · CNA Ninja Forms (Unknown) Fixed in 3.15.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Ninja Forms 3.15.4
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-62029 Ninja Forms 3.15.3 - Unauthenticated PHP Object Injection via CSV ExportPriority LOW 35
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92438
- 2026-10-03 Alias added: GHSA-x4cv-hqr7-5rcm
References
Sources
- CVE-2026-92438 · CVE Program
- CVE-2026-92438 · NVD
- FIRST EPSS
- GHSA-x4cv-hqr7-5rcm · 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