CVE-2020-5233

MEDIUM EPSS 62.2%
Published Jan 30, 20206y ago · Modified Jun 17, 20261w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Jan 30, 2020 6y ago
Last Modified Jun 17, 2026 1w ago

Description

OAuth2 Proxy before 5.0 has an open redirect vulnerability. Authentication tokens could be silently harvested by an attacker. This has been patched in version 5.0.

CVSS Details

Base Score
6.1
Exploitability
2.8
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
62.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-601

Affected Products 1

VendorProductVersionRange
oauth2_proxy_projectoauth2_proxy* <5.0.0

References 3

  • github.com https://github.com/pusher/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2
    PatchThird Party Advisory
  • github.com https://github.com/pusher/oauth2_proxy/releases/tag/v5.0.0
    Release NotesThird Party Advisory
  • github.com https://github.com/pusher/oauth2_proxy/security/advisories/GHSA-qqxw-m5fj-f7gv
    ExploitPatchThird Party Advisory

Remediation

  • github.com https://github.com/pusher/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2
    PatchThird Party Advisory
  • github.com https://github.com/pusher/oauth2_proxy/security/advisories/GHSA-qqxw-m5fj-f7gv
    ExploitPatchThird Party Advisory