Missing authorization in Kali Forms lets subscribers send spoofed email
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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-862.
Summary
The Kali Forms contact form and drag-and-drop builder WordPress plugin before 2.4.30 does not check user capabilities on its test-email handler. A nonce that any logged-in user can obtain is the only check, so a low-privileged user such as a Subscriber can make the site send email to an arbitrary recipient with a spoofed sender address. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-11-01
Description from the CNA
The Kali Forms — Contact Form & Drag-and-Drop Builder WordPress plugin before 2.4.30 does not perform a capability check on its test-email handler, relying only on a nonce that is available to any logged-in user, so a low-privileged user such as a Subscriber can make the site send email to an arbitrary recipient with a spoofed sender address.
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 | Kali Forms — Contact Form & Drag-and-Drop Builder | before 2.4.30 | 2.4.30 | Patch available | CNA |
- Kali Forms — Contact Form & Drag-and-Drop Builder VendorUnknown Affected before 2.4.30 Fixed in 2.4.30 Patch available CNA
Remediation
Update Kali Forms to version 2.4.30, which fixes the flaw. The sources list no vendor advisory identifier for this fix.
Written with Claude Haiku 5.5 from the sources below · 2026-11-01
- Fix · CNA Kali Forms — Contact Form & Drag-and-Drop Builder (Unknown) Fixed in 2.4.30
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Kali Forms — Contact Form & Drag-and-Drop Builder 2.4.30
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-83584 Kali Forms plugin lets subscribers read user email addressesPriority LOW 19
Timeline
- 2026-11-01 Threatist record created from CVE-2026-107343
- 2026-11-01 Alias added: GHSA-r3f9-h5m2-87ch
- 2026-11-01 CVSS score added · CISA ADP
- 2026-11-01 Weakness changed · CISA ADP
- 2026-11-01 CISA SSVC decision points changed
References
Sources
- CVE-2026-107343 · CVE Program
- CVE-2026-107343 · NVD
- FIRST EPSS
- GHSA-r3f9-h5m2-87ch · 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