CVE-2026-54694 SkillTree - Stored XSS & CSRF Token Theft

SkillTree < 4.4.2 contains a stored XSS caused by unsanitized user input in account registration fields and unsafe HTML rendering in StringHighlighter.js and HighlightedValue.vue, letting attackers execute arbitrary scripts in admin browsers, exploit requires attacker to self-register with crafted input.

CVSS base score 9.6 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Remote Code Execution, Cross Site Request Forgery, Client Script Exec
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L
Published
9 September 2026
Updated
15 October 2026
Weakness
CWE-20

Vendor fix

Update to version 4.4.2 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

← All CVEs