djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to versions 1.0.10 and 1.1.2, djust keys context output-safety grants by variable name and fails to revoke a grant when a template bind replaces the value associated with that name. A template using {% with %}, {% for %}, {% include ... with %}, tuple unpacking, or assign tags can therefore rebind a name that previously held mark_safe content and emit the new attacker-controlled value without escaping, including descendant lookups through the rebound name.
This can cause stored or reflected cross-site scripting when a victim renders the affected template. This issue is fixed in versions 1.0.10 and 1.1.2.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/djust-org/djust/commit/06d213dbdd82f5b1c2affe2f869ae88a71809…
security-advisories@github.com
https://github.com/djust-org/djust/commit/5288e5dbc8d83d8aee8a22a0a7a3a478461c8…
security-advisories@github.com
https://github.com/djust-org/djust/pull/2444
security-advisories@github.com
https://github.com/djust-org/djust/releases/tag/v1.0.10
security-advisories@github.com
https://github.com/djust-org/djust/releases/tag/v1.1.2
security-advisories@github.com
https://github.com/djust-org/djust/security/advisories/GHSA-xjw9-38cr-6372
security-advisories@github.com