Auth bypass in Mikevanwinkle Simplr Registration Form Plus\+
CVE-2023-4213
The Simplr Registration Form Plus+ plugin for WordPress is vulnerable to Insecure Direct Object References in versions up to, and including, 2.4.5. This is due to the plugin providing user-controlled access to objects, letting a user bypass authorization and access system resources. This makes it possible for authenticated attackers with subscriber-level permissions or above to change user passwords and potentially take over administrator accounts.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.008 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/6ddf0452-3afe-4ada-bccc-30c81… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/simplr-registration-form/trunk/lib/profile.p… (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-4213?
- CVE-2023-4213 is a high-severity vulnerability in Mikevanwinkle Simplr Registration Form Plus\+, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2023-09-13.
- How severe is CVE-2023-4213?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-4213 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.