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TI-2026-70226 Aliases CVE-2026-101921GHSA-9hgh-pr23-77c9

Reflected cross-site scripting in WPForms via query_var smart tag

Priority LOW 21CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
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 smub WPForms plugin for WordPress is affected in all versions up to and including 2.0.2.1. Insufficient sanitization and output escaping (CWE-79) allow reflected cross-site scripting via the query_var smart tag. An unauthenticated attacker can inject scripts that run in a user's browser if they trick the user into clicking a link. Exploitation requires a saved form that embeds the smart tag and has Show Description enabled on a public page.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'attacker-chosen key referenced by the smart tag (e.g. "x")' parameter in all versions up to, and including, 2.0.2.1 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. Exploitation requires that a site administrator has previously saved a form whose description embeds a {query_var} Smart Tag inside an iframe srcdoc attribute and has enabled Show Description on a public-facing page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00251 16th 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
smubWPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & Moreup to 2.0.2.1—No fix listedCNA
  • WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More Vendorsmub Affected up to 2.0.2.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for the WPForms plugin (AI Form Builder for WordPress, Contact Forms, Payment Forms, Survey Form, Quiz & More).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-10 Threatist record created from CVE-2026-101921
  2. 2026-10-10 Alias added: GHSA-9hgh-pr23-77c9
  3. 2026-10-11 CISA SSVC decision points changed

References

Other 6

  • TI-2026-07755 WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost CVSS 3.1HIGH 8.8
  • TI-2026-83530 Remote code execution in NextGEN Gallery plugin for WordPress CVSS 3.1HIGH 8.8
  • TI-2026-78567 PHP object injection in Duplicator and Duplicator Pro plugins CVSS 3.1HIGH 8.8
  • TI-2026-01649 ExactMetrics 8.6.0 - 9.0.2 - Authenticated (Custom) Insecure Direct Object Reference to Arbitrary Plugin Installation CVSS 3.1HIGH 8.8
  • TI-2026-01160 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 4.0.4 - Authenticated (Author+) Local File Inclusion CVSS 3.1HIGH 8.8
  • TI-2025-12465 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery <= 3.59.12 - Authenticated… CVSS 3.1HIGH 8.8
See all 67 →

Sources

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