CVE-2026-108260
highTina is a headless content management system.
Tina is a headless content management system. Prior to 0.2.1, the tina-markdown element in packages/@tinacms/web-components/src/tina-markdown.js assigns a rich-text node.url value directly to an anchor href without validating the URL scheme. A content author can store a link using a script-capable scheme, and a visitor who clicks the rendered link executes attacker-controlled script in the site's origin. The script can access same-origin application data and, when the visitor is an editor or administrator, may expose credentials stored by the TinaCMS admin on that origin. This issue is fixed in version 0.2.1.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/tinacms/tinacms/commit/5295e077f0d279c35686a0e481a15e33a4877e3b security-advisories@github.com
- https://github.com/tinacms/tinacms/pull/7523 security-advisories@github.com
- https://github.com/tinacms/tinacms/releases/tag/@tinacms/web-components@0.2.1 security-advisories@github.com
- https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg security-advisories@github.com
- https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg 134c704f-9b21-4f2e-91b3-4a467353bcc0