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TI-2026-15128 Aliases CVE-2026-18409GHSA-6mv8-cgfh-7rch

Cross-site scripting in WPForms Pro

Priority LOW 38CWE-79Published · Updated

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 WPForms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Single Line Text and Paragraph Text Field Values in all versions up to, and including, 2.0.0.2 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 exploit relies on the plugin's own wp_kses_allowed_html filter widening the 'post' allowlist to permit iframe elements with a data-src attribute, which is not on WordPress's URI-attribute sanitization list, allowing a javascript: URI stored in data-src to survive kses processing and subsequently be promoted to a live src attribute by the bundled admin script view-entry.min.js.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00342 27th 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
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

VendorProductAffected versionsFixed inStatusSource
WPFormsWPForms Proup to 2.0.0.2—No fix listedCNA
  • WPForms Pro VendorWPForms Affected up to 2.0.0.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18409
  2. 2026-10-03 Alias added: GHSA-6mv8-cgfh-7rch

References

Other 2

  • TI-2022-03289 WPForms Pro < 1.7.7 - CSV Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-10443 Contact Form & SMTP Plugin for WordPress by PirateForms < 2.6.0 - Admin+ Stored XSS CVSS 3.1MEDIUM 6.1
  • TI-2024-10442 Contact Form & SMTP Plugin for WordPress by PirateForms < 2.6.0 - Admin+ Stored XSS CVSS 3.1MEDIUM 6.1
  • TI-2020-19054 WPForms 1.7.8 - Cross-Site Scripting (XSS) CVSS 4.0MEDIUM 5.1
  • TI-2024-10397 WPForms < 1.9.2.3 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.7
  • TI-2026-09286 WPForms Pro <= 1.10.1.1 - Unauthenticated Arbitrary File Write via Chunked Upload Init/Finalize Ordering CVSS 3.1HIGH 8.1
See all 17 →

Sources

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