Jenkins · Jenkins · CVE-2020-2105
**Name of the Vulnerable Software and Affected Versions**
Jenkins versions 2.218 and earlier
Jenkins LTS versions 2.204.1 and earlier
**Description**
The issue allows for clickjacking attacks due to the absence of the `X-Frame-Options: deny` HTTP header in REST API responses. An attacker could exploit this by tricking a user into performing an action on a specially crafted web page that embeds a REST API endpoint in an iframe, potentially allowing the attacker to learn the content of that endpoint.
**Recommendations**
For Jenkins versions 2.218 and earlier, update to version 2.219 or later.
For Jenkins LTS versions 2.204.1 and earlier, update to version 2.204.2 or later.