TI-2025-11120 Aliases CVE-2025-12125 GHSA-x258-vqv6-3976

HTML Forms <= 1.5.5 - Authenticated (Admin+) Stored Cross-Site Scripting

LOW 20CWE-79Published 2025-11-08 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: High
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 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00205 10th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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 1.5.5	—	No fix listed	CNA

HTML Forms – Simple WordPress Forms Plugin VendorLink Software LLC Affected up to 1.5.5 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-12125
2026-10-03 Alias added: GHSA-x258-vqv6-3976

References

Other 2

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-2025-12668 HTML Forms – Simple WordPress Forms Plugin <= 1.6.0 - Unauthenticated Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences