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TI-2026-83506 Aliases CVE-2026-103962GHSA-g38f-36qr-wwhh

Reflected cross-site scripting in WordPress User Frontend plugin

Priority LOW 27CWE-79Published · Updated

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 User Frontend plugin for WordPress, in all versions up to and including 4.3.13, does not sanitize or escape the field_attr[required] parameter. This lets an unauthenticated attacker inject arbitrary web scripts (CWE-79) that run in a page when a user is tricked into clicking a crafted link.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'field_attr[required]' parameter in all versions up to, and including, 4.3.13 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The nonce check on the wpuf_get_child_cat AJAX action is not an effective security barrier because the wpuf_nonce value is publicly localized to every anonymous visitor of any page containing a WPUF shortcode, making it freely harvestable by an unauthenticated attacker.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 11th 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

VendorProductAffected versionsFixed inStatusSource
weDevsUser Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submissionup to 4.3.13—No fix listedCNA
  • User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission VendorweDevs Affected up to 4.3.13 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for User Frontend (Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission).

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-103962
  2. 2026-10-31 Alias added: GHSA-g38f-36qr-wwhh
  3. 2026-11-01 Priority changed: MEDIUM → LOW
  4. 2026-11-01 CISA SSVC decision points changed

References

Other 6

  • TI-2021-06932 WP User Frontend < 3.5.29 - Obscure Registration as Admin CVSS 3.1CRITICAL 9.8
  • TI-2024-03660 Dokan Pro <= 3.10.3 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 10.0
  • TI-2024-11873 WP ERP < 1.13.4 - Custom+ Unauthorized Access to Terminated Employee Information CVSS 3.1HIGH 7.5
  • TI-2024-11148 SQL Injection in WordPress Project Manager Plugin CVSS 3.1HIGH 7.7
  • TI-2023-02570 WP ERP < 1.12.4 - Admin+ SQL Injection CVSS 3.1HIGH 7.2
  • TI-2023-02569 WP ERP < 1.12.4 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
See all 144 →

Sources

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