CVE-2026-106102 Quasar Framework - Stored XSS

Quasar Framework < 2.22.0 contains a stored XSS caused by improper encoding in the SSR-only getHead() serializer in ui/src/plugins/meta/Meta.js, letting attackers inject executable markup via dynamic page metadata, exploit requires attacker control over metadata.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.30% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to version 2.22.0 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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