Kali Forms <= 2.4.18 - Unauthenticated Stored Cross-Site Scripting via 'digitalSignature' Field Value
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Kali Forms — Contact Form & Drag-and-Drop Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'digitalSignature' Field Value in all versions up to, and including, 2.4.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The required form-submission nonce is publicly available on any page containing the form shortcode, making this exploitable by fully unauthenticated attackers without any precondition beyond the form being published.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15395
- 2026-10-03 Alias added: GHSA-mjg8-2mjg-9rwc
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/90e39398-19d7-435d-b23f-e93b8cdbcae4?source=cve
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.17/Inc/Frontend/class-submission-shortcode.php#L198
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.18/Inc/Frontend/class-submission-shortcode.php#L198
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.18/Inc/Frontend/class-form-processor.php#L88
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.18/Inc/Frontend/class-form-processor.php#L997
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.17/Inc/Frontend/class-form-processor.php#L88
- https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.17/Inc/Frontend/class-form-processor.php#L997
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3609303%40kali-forms&new=3609303%40kali-forms
More wpchill vulnerabilities
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- TI-2021-07068 Download Monitor < 4.4.5 - Admin+ SQL Injection CVSS 3.1HIGH 7.2
- TI-2022-22320 WordPress Download Monitor Plugin <= 4.7.60 is vulnerable to Sensitive Data Exposure CVSS 3.1HIGH 7.5
- TI-2024-03458 Image Photo Gallery Final Tiles Grid < 3.6.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.8
- TI-2021-05950 WordPress Download Monitor plugin <= 4.4.6 - Auth. Stored Cross-Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 4.8
- TI-2026-03090 Kali Forms <= 2.4.9 - Unauthenticated Remote Code Execution via form_process CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-15395 · CVE Program
- CVE-2026-15395 · NVD
- FIRST EPSS
- GHSA-mjg8-2mjg-9rwc · 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