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Vulnerability record · CVE-2023-1912 · published 6 April 2023

CVE-2023-1912: Limit login attempts project limit login attempts cross-site scripting vulnerability

Limit Login Attempts Project · Limit Login Attempts

The Limit Login Attempts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via its lock logging feature in versions up to, and including, 1.7.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the plugin's settings page. This only works when the plugin prioritizes use of the X-FORWARDED-FOR header, which can be configured in its settings.

6.1 CVSS 3.1 Medium EPSS 0.79% · top 45.5% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
0.79%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

The Limit Login Attempts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via its lock logging feature in versions up to, and including, 1.7.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the plugin's settings page. This only works when the plugin prioritizes use of the X-FORWARDED-FOR header, which can be configured in its settings.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=551920%40limit-login-attempts%2Ftags%2F Patch
https://www.pluginvulnerabilities.com/2018/03/09/one-of-the-ten-most-popular-wordpress-plugins-isnt-needed-and-introduce
https://www.wordfence.com/blog/2023/04/update-now-severe-vulnerability-impacting-600000-sites-patched-in-limit-login-att
https://www.wordfence.com/threat-intel/vulnerabilities/id/cb8c80fc-3b51-4003-b221-6f02e74bead0?source=cve Third Party Advisory
http://packetstormsecurity.com/files/171824/WordPress-Limit-Login-Attempts-1.7.1-Cross-Site-Scripting.html
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=551920%40limit-login-attempts%2Ftags%2F Patch
https://www.pluginvulnerabilities.com/2018/03/09/one-of-the-ten-most-popular-wordpress-plugins-isnt-needed-and-introduce
https://www.wordfence.com/threat-intel/vulnerabilities/id/cb8c80fc-3b51-4003-b221-6f02e74bead0?source=cve Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-1912), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.