In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (\) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.
| Software | From | Fixed in |
|---|---|---|
org.jenkins-ci.main / jenkins-core
|
- | 2.492.2 |
org.jenkins-ci.main / jenkins-core
|
2.493 | 2.500 |
| jenkins / jenkins | - | 2.500 |
| jenkins / jenkins | - | 2.492.2 |