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TI-2026-73791 Aliases CVE-2026-95816GHSA-wvww-4x5h-8gg3

Smart Forms plugin for WordPress: Unauthenticated Stored XSS via formString

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 Smart Forms plugin for WordPress by edgarrojas is vulnerable to Stored Cross-Site Scripting (CWE-79) via the formString parameter in all versions through 2.6.104, due to insufficient input sanitization and output escaping. Unauthenticated attackers can inject arbitrary web scripts into pages, which execute whenever a user accesses an injected page. The nonce check on the rednao_smart_forms_save_form_values AJAX handler is enforced only when the smart_forms_block_anonymous_submissions option is enabled, so default installations need no authentication or nonce to store a payload.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Smart Forms – when you need more than just a contact form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'formString' parameter in all versions up to, and including, 2.6.104 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 nonce check protecting the rednao_smart_forms_save_form_values AJAX handler is only enforced when the smart_forms_block_anonymous_submissions option is enabled, meaning default installations require no authentication or nonce verification whatsoever to submit and store malicious payloads.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00365 30th 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
edgarrojasSmart Forms – when you need more than just a contact formup to 2.6.104—No fix listedCNA
  • Smart Forms – when you need more than just a contact form Vendoredgarrojas Affected up to 2.6.104 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for this plugin. Until a patched release is available, enable the smart_forms_block_anonymous_submissions option so the nonce check applies to the save handler, or remove the plugin.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-14 Threatist record created from CVE-2026-95816
  2. 2026-10-14 Alias added: GHSA-wvww-4x5h-8gg3
  3. 2026-10-14 Priority changed: MEDIUM → LOW
  4. 2026-10-16 CISA SSVC decision points changed

References

Other 6

  • TI-2024-01217 Smart Forms < 2.6.94 - Subscriber+ Edit Entries via Broken Access Control CVSS 3.1MEDIUM 6.5
  • TI-2023-06589 Smart Forms < 2.6.87 - Subscriber+ Arbitrary Entry Deletion CVSS 3.1MEDIUM 6.1
  • TI-2024-01216 Smart Forms < 2.6.94 - Edit Entries via CSRF CVSS 3.1MEDIUM 5.4
  • TI-2023-21077 WordPress Donations Made Easy – Smart Donations Plugin <= 4.0.12 is vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2023-19855 WordPress Donations Made Easy – Smart Donations plugin <= 4.0.12 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
  • TI-2023-03434 WooCommerce PDF Invoice Builder <= 1.2.89 - Authenticated (Subscriber+) SQL Injection via Export CVSS 3.1HIGH 8.8
See all 36 →

Sources

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