The Rucy plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 0.4.4. This is due to missing or incorrect nonce validation on the save_rc_post_meta() function. This makes it possible for unauthenticated attackers to save post meta via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Published 2023-07-01 06:15:10
Updated 2023-07-07 20:31:07
Source Wordfence
View at NVD,   CVE.org
Vulnerability category: Cross-site request forgery (CSRF)

Exploit prediction scoring system (EPSS) score for CVE-2021-4396

0.08%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-4396

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
2.8
1.4
NIST
4.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
2.8
1.4
Wordfence

CWE ids for CVE-2021-4396

  • The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.
    Assigned by: security@wordfence.com (Primary)

References for CVE-2021-4396

Products affected by CVE-2021-4396

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