HTML Forms – Simple WordPress Forms Plugin <= 1.6.0 - Unauthenticated Stored Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- 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 HTML Forms – Simple WordPress Forms Plugin for WordPress is vulnerable to Unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.0 due to insufficient sanitization of fabricated file upload field metadata before displaying it in the WordPress admin dashboard. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute whenever an administrator accesses the form submissions page.
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 |
|---|---|---|---|---|---|
| Link Software LLC | HTML Forms – Simple WordPress Forms Plugin | up to 1.6.0 | — | No fix listed | CNA |
- HTML Forms – Simple WordPress Forms Plugin VendorLink Software LLC Affected up to 1.6.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-13861
- 2026-10-03 Alias added: GHSA-229f-x533-c4r4
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/52e2f1b9-d240-4813-9124-51bd6b047553?source=cve
- https://plugins.trac.wordpress.org/browser/html-forms/trunk/src/functions.php#L321
- https://plugins.trac.wordpress.org/browser/html-forms/trunk/src/functions.php#L357
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3419926%40html-forms%2Ftrunk&old=3407043%40html-forms%2Ftrunk&sfp_email=&sfph_mail=
More Link Software LLC vulnerabilities
- TI-2026-25023 WordPress WP Terms Popup plugin <= 2.10.0 - Broken Access Control vulnerability CVSS 3.1HIGH 7.5
- TI-2025-22350 WordPress HTML Forms plugin <= 1.5.1 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2024-37096 WordPress HTML Forms plugin <= 1.4.1 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2025-11120 HTML Forms <= 1.5.5 - Authenticated (Admin+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 4.4
Sources
- CVE-2025-13861 · CVE Program
- CVE-2025-13861 · NVD
- FIRST EPSS
- GHSA-229f-x533-c4r4 · 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