Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 3.3.0, several @quasar/app-vite SSR and SSG rendering paths interpolated ssrContext.nonce directly into quoted HTML attributes. An application that derives or overrides this value with attacker-controlled data can allow a quote to terminate the nonce attribute and inject additional attributes or markup into generated HTML across development and production SSR or SSG output.
Cryptographically generated base64 or base64url nonces are not affected because they lack HTML attribute delimiters. This issue is fixed in version 3.3.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
@quasar:app-vite
quasarframework:quasar
References 3
https://github.com/quasarframework/quasar/security/advisories/GHSA-5m6h-8g35-p3…
https://github.com/quasarframework/quasar/security/advisories/GHSA-5m6h-8g35-p3m7
https://github.com/quasarframework/quasar/commit/91271c38859bec51e154b60c24497a…
https://github.com/quasarframework/quasar/commit/91271c38859bec51e154b60c24497a637ce903d7
https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0
https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0