{"vulnerability": "cve-2026-108260", "sightings": [{"uuid": "90c6ca00-9e1e-4223-b266-5eb6b548d8a8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-108260", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117412931952729577", "content": "CVE-2026-108260 @tinacms/web-components: `tina-markdown` writes rich-text link URLs into `href` without scheme validation, allowing stored XSS 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.\nhttps://www.cve.org/CVERecord?id=CVE-2026-108260https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vghttps://github.com/tinacms/tinacms/pull/7523https://github.com/tinacms/tinacms/commit/5295e077f0d279c35686a0e481a15e33a4877e3bhttps://github.com/tinacms/tinacms/releases/tag/@tinacms/web-components@0.2.1#tinacms #@tinacms #web-components#CVE_2026_108260#bot", "creation_timestamp": "2026-10-09T20:52:42.547372Z"}, {"uuid": "3039006f-5884-47ec-9737-fd6ad8d3decf", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-108260", "type": "published-proof-of-concept", "source": "https://github.com/tinacms/tinacms/security/advisories/GHSA-c42q-qvc3-j6vg", "content": "", "creation_timestamp": "2026-09-16T22:02:19.000000Z"}, {"uuid": "ca377206-50c0-488a-a6f3-f6ad93dcca72", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-108260", "type": "seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mxhx5xqgeb2b", "content": "\ud83d\udfe0 CVE-2026-108260 - High (7.6)\n\nTina is a headless content management system. Prior to 0.2.1, the tina-markdown element in packag...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-108260/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "creation_timestamp": "2026-10-09T21:46:29.850253Z"}]}