Auth bypass in Wpdeveloper Simple 301 Redirects
CVE-2021-24355
In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, the lack of capability checks and insufficient nonce check on the AJAX actions, simple301redirects/admin/get_wildcard and simple301redirects/admin/wildcard, made it possible for authenticated users to retrieve and update the wildcard value for redirects.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Wpdeveloper Simple 301 Redirects
- Simple 301 Redirects By Betterlinks — versions 2.0.0, 2.0.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/blog/2021/05/severe-vulnerabilities-patched-in-simple-301-red… (Exploit, Third Party Advisory)
- wpscan.com/vulnerability/ce8f9648-30fb-4fb9-894e-879dc0f26f98 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24355?
- CVE-2021-24355 is a medium-severity vulnerability in Wpdeveloper Simple 301 Redirects, classified under Missing Authorization. CVSS score: 4.3/10. Published 2021-06-14.
- How severe is CVE-2021-24355?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-24355 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.