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TI-2026-57926 Aliases CVE-2026-84281GHSA-4wqf-6xrq-qp4m

Cross-site scripting in radykal Fancy Product Designer

Priority LOW 37CWE-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 Fancy Product Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'productTitle' in '_fpd_data' Order Item Meta in all versions up to, and including, 6.5.2 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 fpd_save_order AJAX action is registered for unauthenticated users via wp_ajax_nopriv_fpd_save_order with no nonce or capability check, and the strip_tags() sanitization applied at save time is bypassed by submitting JSON unicode escape sequences (e.g. \u003c, \u003e), which json_decode() silently converts back to literal angle brackets when the order is rendered in the admin view.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00206 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
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
radykalFancy Product Designerup to 6.5.2—No fix listedCNA
  • Fancy Product Designer Vendorradykal Affected up to 6.5.2 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-2026-84281
  2. 2026-10-03 Alias added: GHSA-4wqf-6xrq-qp4m

References

  • TI-2021-06662 Fancy Product Designer < 4.6.9 - Unauthenticated Arbitrary File Upload and RCE CVSS 3.1CRITICAL 9.8
  • TI-2024-34722 WordPress Fancy Product Designer plugin <= 6.4.3 - Unauthenticated SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
  • TI-2024-00332 Fancy Product Designer < 6.1.5 - Admin+ SQL Injection CVSS 3.1MEDIUM 6.5
  • TI-2024-00834 Fancy Product Designer < 6.1.8 - Reflected Cross Site Scripting CVSS 3.1MEDIUM 6.3
  • TI-2024-00831 Fancy Product Designer < 6.1.81 - Admin+ Cross Site Scripting via Product Title CVSS 3.1MEDIUM 4.8
  • TI-2024-34823 WordPress Fancy Product Designer plugin <= 6.4.3 - Unauthenticated Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 9.0
See all 17 →

Sources