The collapsible and metabox section were not properly escaped against XSS.
This vulnerability affects the following application versions:
- Yoast SEO 8.0
- Yoast SEO 8.1
- Yoast SEO 8.1.1
- Yoast SEO 8.1.2
- Yoast SEO 8.2
- Yoast SEO 8.2.1
- Yoast SEO 8.3
- Yoast SEO 8.4
- Yoast SEO 9.0
- Yoast SEO 9.0.1
- Yoast SEO 9.0.2
- Yoast SEO 9.0.3
- Yoast SEO 9.1
- Yoast SEO 9.2
- Yoast SEO 9.2.1
- Yoast SEO 9.3
- Yoast SEO 9.4
- Yoast SEO 9.5
- Yoast SEO 9.6
- Yoast SEO 9.7
- Yoast SEO 10.0
- Yoast SEO 10.0.1
- Yoast SEO 10.1
- Yoast SEO 10.1.1
- Yoast SEO 10.1.2
- Yoast SEO 10.1.3
- Yoast SEO 11.0
- Yoast SEO 11.1
- Yoast SEO 11.1.1
- Yoast SEO 11.2
- Yoast SEO 11.2.1
- Yoast SEO 11.3
- Yoast SEO 11.4
- Yoast SEO 11.5
- Yoast SEO 11.6
- Yoast SEO 11.7
- Yoast SEO 11.8