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.
Metrics
Affected Vendors & Products
References
History
Tue, 13 Oct 2026 16:30:00 +0000
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ssvc
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Sun, 11 Oct 2026 12:45:00 +0000
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| First Time appeared |
Tina
Tina tinacms Tina web-components |
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| Vendors & Products |
Tina
Tina tinacms Tina web-components |
Fri, 09 Oct 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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. | |
| Title | @tinacms/web-components: `tina-markdown` writes rich-text link URLs into `href` without scheme validation, allowing stored XSS | |
| Weaknesses | CWE-79 CWE-83 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-09T20:40:37.228Z
Updated: 2026-10-13T15:17:14.297Z
Reserved: 2026-10-09T17:33:15.409Z
Link: CVE-2026-108260
Updated: 2026-10-13T15:16:46.937Z
Status : Deferred
Published: 2026-10-09T21:17:04.180
Modified: 2026-10-16T20:04:29.760
Link: CVE-2026-108260
No data.