Vulnerability Details : CVE-2023-5135
Potential exploit
The Simple Cloudflare Turnstile plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'gravity-simple-turnstile' shortcode in versions up to, and including, 1.23.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2023-5135
- cpe:2.3:a:replywp:simple_cloudfare_turnstile:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-5135
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-5135
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | |
6.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
3.1
|
2.7
|
Wordfence |
CWE ids for CVE-2023-5135
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: security@wordfence.com (Primary)
References for CVE-2023-5135
-
https://plugins.trac.wordpress.org/browser/simple-cloudflare-turnstile/tags/1.23.0/simple-cloudflare-turnstile.php#L72
simple-cloudflare-turnstile.php in simple-cloudflare-turnstile/tags/1.23.0 – WordPress Plugin RepositoryExploit
-
https://plugins.trac.wordpress.org/browser/simple-cloudflare-turnstile/tags/1.23.0/inc/integrations/forms/gravity-forms.php#L14
gravity-forms.php in simple-cloudflare-turnstile/tags/1.23.0/inc/integrations/forms – WordPress Plugin RepositoryExploit
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https://plugins.trac.wordpress.org/browser/simple-cloudflare-turnstile/tags/1.23.0/inc/integrations/forms/gravity-forms.php#L23
gravity-forms.php in simple-cloudflare-turnstile/tags/1.23.0/inc/integrations/forms – WordPress Plugin RepositoryExploit
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https://plugins.trac.wordpress.org/changeset/2970368/simple-cloudflare-turnstile#file1
Changeset 2970368 for simple-cloudflare-turnstile – WordPress Plugin RepositoryPatch
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https://www.wordfence.com/threat-intel/vulnerabilities/id/91f6c9d3-641d-42f7-bf11-e3c3a44eeb76?source=cve
Simple Cloudflare Turnstile <= 1.23.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodeThird Party Advisory
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