CVE-2021-4338
CVE-2021-4338 is a medium-severity vulnerability in Duckdev 404 To 301 with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.
Key facts
- Severity: Medium (CVSS 3.x base score 6.4)
- EPSS exploit prediction: 1% (45th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-284
- Affected product: Duckdev 404 To 301
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-4338?
- CVE-2021-4338 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-4338 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-4338?
- CVE-2021-4338 affects Duckdev 404 To 301. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-4338?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-4338 published?
- CVE-2021-4338 was published on 2023-06-07 and last updated on 2026-06-17.
References
- https://blog.nintechnet.com/broken-access-control-vulnerability-fixed-in-wordpress-404-to-301-plugin/
- https://plugins.trac.wordpress.org/changeset/2546695/404-to-301
- https://wpscan.com/vulnerability/9f147107-bc5a-4a01-9979-cd9e16061f12
- https://www.acunetix.com/vulnerabilities/web/wordpress-plugin-404-to-301-redirect-log-and-notify-404-errors-security-bypass-3-0-7/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/05d6b27f-b1e5-4bb8-b7db-f8295a5e0d5b?source=cve
Affected products (1)
- cpe:2.3:a:duckdev:404_to_301:*:*:*:*:*:wordpress:*:*
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