Vulnerability Details : CVE-2021-4403
The Remove Schema plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.5. This is due to missing or incorrect nonce validation on the validate() function. This makes it possible for unauthenticated attackers to modify the plugins settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Vulnerability category: Cross-site request forgery (CSRF)
Products affected by CVE-2021-4403
- cpe:2.3:a:websitescanner:remove_schema:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4403
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4403
| 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
|
Wordfence |
CWE ids for CVE-2021-4403
-
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.Assigned by: security@wordfence.com (Primary)
References for CVE-2021-4403
-
https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
Multiple WordPress plugins fixed CSRF vulnerabilities (part 3). – NinTechNetThird Party Advisory
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https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
Multiple WordPress plugins fixed CSRF vulnerabilities (part 5). – NinTechNetNot Applicable
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https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
Multiple WordPress plugins fixed CSRF vulnerabilities (part 2). – NinTechNetNot Applicable
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https://www.wordfence.com/threat-intel/vulnerabilities/id/89635463-966d-4f7d-995d-ad83a502d95b?source=cve
Remove Schema <= 1.5 - Cross-Site Request Forgery BypassThird Party Advisory
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https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
25 WordPress plugins vulnerable to CSRF attacks. – NinTechNetNot Applicable
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https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
Multiple WordPress plugins fixed CSRF vulnerabilities (part 4). – NinTechNetNot Applicable
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https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
More WordPress plugins and themes vulnerable to CSRF attacks. – NinTechNetNot Applicable
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https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2548575%40remove-schema&new=2548575%40remove-schema&sfp_email=&sfph_mail=
Changeset 2548575 for remove-schema – WordPress Plugin RepositoryPatch
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https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
Multiple WordPress plugins fixed CSRF vulnerabilities (part 1). – NinTechNetNot Applicable
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