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TI-2026-69006 Aliases CVE-2026-102173GHSA-7vc3-qmp9-p8w8

Stored cross-site scripting in Kirki WordPress plugin

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

Themeum's Kirki plugin for WordPress has insufficient escaping in all versions up to and including 6.3.1, where the function ExceptionalElements::image_element() places a user-meta value straight into an img src attribute (CWE-79). An unauthenticated attacker can inject arbitrary web script that runs when a user opens a page showing a Kirki users collection bound to one of the registration meta fields. This requires public user registration to be enabled and a published page that contains a kirki-register element.

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

Description from the CNA

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via registration metadata in all versions up to, and including, 6.3.1 This is due to insufficient escaping in `ExceptionalElements::image_element()`, which concatenates a user-meta value straight into an `<img src="…">` attribute. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute whenever a user accesses a page rendering a Kirki users collection whose image element is bound to one of the nine registration meta fields. Requires public user registration to be enabled and a published page carrying a `kirki-register` element, which prints the required element nonce into the public markup.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00366 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
themeumKirki – Freeform Page Builder, Website Builder & Customizerup to 6.3.1—No fix listedCNA
  • Kirki – Freeform Page Builder, Website Builder & Customizer Vendorthemeum Affected up to 6.3.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Kirki.

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

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-102173
  2. 2026-10-07 Alias added: GHSA-7vc3-qmp9-p8w8
  3. 2026-10-07 CISA SSVC decision points changed
  4. 2026-10-07 Priority changed: MEDIUM → LOW

References

Other 11

  • TI-2024-09629 Tutor LMS <= 2.7.6 - Unauthenticated SQL Injection via rating_filter CVSS 3.1HIGH 7.5
  • TI-2023-02936 Tutor LMS < 2.2.1 - Unauthenticated Access to Tutor LMS Lesson Resources via REST API CVSS 3.1HIGH 7.5
  • TI-2021-07196 Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending CVSS 3.1HIGH 7.5
  • TI-2023-05666 WP Crowdfunding < 2.1.9 - Reflected XSS CVSS 3.1MEDIUM 6.1
  • TI-2023-00225 Tutor LMS < 2.0.10 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
  • TI-2023-04422 Tutor LMS < 2.3.0 - Subscriber+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.4
See all 171 →

Sources

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