Preload arbitrary resources by injecting additional `Link` headers
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4epss 0.4%
exploitation probability
0.4%top 64% of all CVEs
observed exploitation
nono source reports it
A vulnerability has been identified in the Express response.links function, allowing for arbitrary resource injection in the Link header when unsanitized data is used.
The issue arises from improper sanitization in `Link` header values, which can allow a combination of characters like `,`, `;`, and `<>` to preload malicious resources.
This vulnerability is especially relevant for dynamic parameters.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Affected products
express · express