VULNERABILITY INTELLIGENCE

CVE-2020-5409

CVSS score6.1 MEDIUM
EPSS probability0.91%
CISA KEVNot currently listed
Published2020-05-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a user to click on a link using the OAuth redirect link with an untrusted website and gain access to that user's access token in Concourse. (This issue is similar to, but distinct from, CVE-2018-15798.)

Weakness classification

  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Primary references