6.1

CVE-2020-5233: oauth2_proxy_project oauth2_proxy Open Redirect

CVSS: 6.1v3.1MediumModified
AliasesGHSA-qqxw-m5fj-f7gvBIT-oauth2-proxy-2020-5233
Published 30-01-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-5233 is a medium (CVSS 6.1) Open Redirect vulnerability in oauth2_proxy_project oauth2_proxy. EPSS estimates a 1.30% chance of exploitation in the next 30 days, higher than 70.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
1.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 30-01-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.30%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

0.00 pp

From 1.30% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Oauth2 Proxy

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Github.com/oauth2-proxy1 product
  • oauth2-proxy< 5.0.0
Oauth2_proxy_project1 product
Pusher1 product

3 vendors · 3 products

References

8 links