Auth bypass in Duckdev 404 To 301

CVE-2021-4338

The 404 to 301 plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the open_redirect & save_redirect functions in versions up to, and including, 3.0.7. This makes it possible for authenticated attackers to view, create and edit redirections.

EPSS: 0.006 (46.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-4338?
CVE-2021-4338 is a medium-severity vulnerability in Duckdev 404 To 301, classified under Improper Access Control. CVSS score: 6.4/10. Published 2023-06-07.
How severe is CVE-2021-4338?
Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2021-4338 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.