CVE-2026-108260
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
- 7.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-79, CWE-83
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-c42q-qvc3-j6vg | npm | @tinacms/web-components | <0.2.1 | 0.2.1 |
References
- https://github.com/tinacms/tinacms/commit/5295e077f0d279c35686a0e481a15e33a4877e3b
- https://github.com/tinacms/tinacms/pull/7523
- https://github.com/tinacms/tinacms/releases/tag/@tinacms/web-components@0.2.1
- https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg
- https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg