Code execution via unescaped schema property names
Published Jan 26, 2023 · Updated Mar 10, 2025
Code injection in AsyncAPI Initiative Modelina before 1.0.0 allows remote authenticated users to alter generated source through schema names. The TypeScript generator's default property preset inserts a schema property name directly into a class declaration without escaping syntax-breaking characters. Exploitation requires a consumer to process attacker-controlled model input and then compile or run the generated source, enabling injected code to execute in that consumer's environment.
Summary
What happened
Code injection in AsyncAPI Initiative Modelina before 1.0.0 allows remote authenticated users to alter generated source through schema names. The TypeScript generator's default property preset inserts a schema property name directly into a class declaration without escaping syntax-breaking characters. Exploitation requires a consumer to process attacker-controlled model input and then compile or run the generated source, enabling injected code to execute in that consumer's environment.
The record
- CVE
- CVE-2023-23619
- Published
- Jan 26, 2023
- Updated
- Mar 10, 2025
- Vendor
- AsyncAPI Initiative
- Product
- Modelina
- Classifications
- CWE-94
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 26, 2023CVE publishedPublication date reported by the CVE source.
- Mar 10, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 1.0.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- TypeScriptGenerator schema property-name injection proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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