CSRF in Edwiser Bridge
CVE-2021-4399
The Edwiser Bridge plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including,2.0.6. This is due to missing or incorrect nonce validation on the user_data_synchronization_initiater(), course_synchronization_initiater(), users_link_to_moodle_synchronization(), connection_test_initiater(), admin_menus(), and subscribe_handler() function. This makes it possible for unauthenticated attackers to perform unauthorized actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.004 (36.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Patch)
Frequently asked questions
- What is CVE-2021-4399?
- CVE-2021-4399 is a medium-severity vulnerability in Edwiser Bridge, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-07-01.
- How severe is CVE-2021-4399?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-4399 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.