CVE-2026-108260 TinaCMS tina-markdown - Stored XSS

TinaCMS tina-markdown element < 0.2.1 contains a stored XSS caused by unvalidated URL scheme in rich-text node.url assigned to anchor href, letting content authors execute scripts in site origin, exploit requires content author privileges.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Published
9 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to version 0.2.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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