CVE-2020-35217
HIGH8.8EPSS 0.15%Cross-Site Request Forgery in Vert.x-Web framework
Published: 4/22/2021Modified: 11/8/2023
Description
Vert.x-Web framework v4.0 milestone 1-4 does not perform a correct CSRF verification. Instead of comparing the CSRF token in the request with the CSRF token in the cookie, it compares the CSRF token in the cookie against a CSRF token that is stored in the session. An attacker does not even need to provide a CSRF token in the request because the framework does not consider it. The cookies are automatically sent by the browser and the verification will always succeed, leading to a successful CSRF attack.
Affected packages (1)
- Maven/io.vertx:vertx-web>= 4.0.0-milestone1, < 4.0.0-milestone5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |