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TI-2026-83460 Aliases CVE-2026-100155GHSA-pqjx-p6p5-mv3f

Unauthenticated shortcode execution in Ninja Forms WordPress plugin

Priority LOW 35CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
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-94.

Summary

The Ninja Forms plugin (Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder) for WordPress by kstover is affected in all versions up to and including 3.15.5. An action does not properly validate a value before it is passed to do_shortcode, which is improper control of code generation (CWE-94). An unauthenticated remote attacker can execute arbitrary shortcodes.

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

Description from the CNA

The The Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.15.5 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00514 44th 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
Saturday DriveNinja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builderup to 3.15.5—No fix listedCNA
  • Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder VendorSaturday Drive Affected up to 3.15.5 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Ninja Forms.

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

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-100155
  2. 2026-10-31 Alias added: GHSA-pqjx-p6p5-mv3f
  3. 2026-11-01 Priority changed: MEDIUM → LOW
  4. 2026-11-02 CISA SSVC decision points changed

References

Other 9

  • TI-2026-00527 Ninja Forms - File Upload <= 3.3.26 - Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
  • TI-2025-08325 Ninja-forms < 3.11.1 - Unauthenticated PHP Objection CVSS 3.1CRITICAL 9.8
  • TI-2016-01107 The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct… CVSS 3.0CRITICAL 9.8
  • TI-2023-19777 WordPress Ninja Forms plugin <= 3.6.25 - Subscriber+ Broken Access Control vulnerability CVSS 3.1HIGH 8.8
  • TI-2022-00792 Ninja Forms - File Uploads Extension <= 3.3.0 - Arbitrary File Upload CVSS 3.1CRITICAL 9.8
  • TI-2022-02691 NinjaForms < 3.6.13 - Admin+ PHP Objection Injection CVSS 3.1HIGH 7.2
See all 94 →

Sources

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