plugin
40 known security issues reported for the Litespeed Cache WordPress plugin. Most recent disclosed Aug 27, 2026.
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Scan your site freeThe LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 7.8.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execut...
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted `<img>` tag attributes in all versions up to, and including, 7.7. This is due to a flawed regular expression that is used to strip `width` and `height` attributes from images when the "Lazy Load Images" and "Add Missing Si...
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the /wp-json/litespeed/v1/notify_ccss and /wp-json/litespeed/v1/notify_ucss REST API endpoints in all versions up to, and including, 7.7. These endpoints accept CSS content from QUIC.cloud callback notifications and store it to di...
[en] The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URLs in all versions up to, and including, 7.5.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if t...
The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URLs in all versions up to, and including, 7.5.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they c...
[en] Server-Side Request Forgery (SSRF) vulnerability in LiteSpeed Technologies LiteSpeed Cache. This issue affects LiteSpeed Cache: from n/a through 7.0.1.
The LiteSpeed Cache plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 7.0.1. This makes it possible for authenticated attackers, with Editor-level access and above, to make web requests to arbitrary locations originating from the web application which can be used to...
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 6.5.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pa...
The LiteSpeed Cache plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 6.5.1. This is due to the is_role_simulation() function not properly providing protection against unauthorized use of the function. This makes it possible for unauthenticated attackers to simulate roles...
[en] Incorrect Privilege Assignment vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Privilege Escalation.This issue affects LiteSpeed Cache: from n/a through 6.5.1.
[en] Insufficiently Protected Credentials vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Authentication Bypass.This issue affects LiteSpeed Cache: from n/a before 6.5.0.1.
[en] : Relative Path Traversal vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Path Traversal.This issue affects LiteSpeed Cache: from n/a through 6.4.1.
[en] Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Stored XSS.This issue affects LiteSpeed Cache: from n/a through 6.5.0.2.
[en] Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Stored XSS.This issue affects LiteSpeed Cache: from n/a through 6.5.0.2.
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'X-LSCACHE-VARY-VALUE' header in all versions up to, and including, 6.5.0.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pa...
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 6.5.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in page...
The LiteSpeed Cache plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 6.4.1. This makes it possible for authenticated attackers, with author-level access and above, to perform actions on files outside of the originally intended directory.
[en] The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin debug settings in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above,...
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin debug settings in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to i...
The LiteSpeed Cache plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 6.4.1 through the debug.log file that is publicly exposed. This makes it possible for unauthenticated attackers to view potentially sensitive information contained in the exposed log file. The...
The LiteSpeed Cache plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 6.3.0.1. This is due to the plugin not properly restricting the role simulation functionality allowing a user to set their current ID to that of an administrator, if they have access to a valid hash whic...
[en] Incorrect Privilege Assignment vulnerability in LiteSpeed Technologies LiteSpeed Cache litespeed-cache allows Privilege Escalation.This issue affects LiteSpeed Cache: from 1.9 through 6.3.0.1.
[en] The LiteSpeed Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.2.0.1. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the token setting and inject malicious JavaScript via a forged req...
The LiteSpeed Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.2.0.1. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the token setting and inject malicious JavaScript via a forged request...
[en] Missing Authorization vulnerability in LiteSpeed Technologies LiteSpeed Cache.This issue affects LiteSpeed Cache: from n/a through 5.7.
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Stored XSS.This issue affects LiteSpeed Cache: from n/a through 5.7.
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'nameservers' and '_msg' parameters in all versions up to, and including, 5.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in...
The LiteSpeed Cache plugin for WordPress is vulnerable to unauthorized modification of data due to a missing authorization check on the 'update_cdn_status' function in versions up to, and including, 5.7. This makes it possible for unauthenticated attackers to modify the plugin's CDN status.
[en] The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'esi' shortcode in versions up to, and including, 5.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and a...
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'esi' shortcode in versions up to, and including, 5.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above...
[en] Cross-Site Request Forgery (CSRF) vulnerability in LiteSpeed Technologies LiteSpeed Cache plugin <= 5.3 versions.
The LiteSpeed Cache plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the rest_api_init function in versions up to, and including, 5.3. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to activate or deactivate ar...
[en] The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting
[en] The LiteSpeed Cache WordPress plugin before 4.4.4 does not properly verify that requests are coming from QUIC.cloud servers, allowing attackers to make requests to certain endpoints by using a specific X-Forwarded-For header value. In addition, one of the endpoint could be used to set CSS code if a setting is enab...
The LiteSpeed Cache WordPress plugin before 4.4.4 does not properly verify that requests are coming from QUIC.cloud servers, allowing attackers to make requests to certain endpoints by using a specific X-Forwarded-For header value. In addition, one of the endpoint could be used to set CSS code if a setting is enabled,...
The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'qc_res' parameter in versions up to, and including, 4.4.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execu...
A cross-site scripting (XSS) vulnerability in the LiteSpeed Cache plugin before 3.6.1 for WordPress can be exploited via the Server IP setting.
[en] A cross-site scripting (XSS) vulnerability in the LiteSpeed Cache plugin before 3.6.1 for WordPress can be exploited via the Server IP setting.
Authenticated Stored Cross-Site Scripting (XSS) vulnerability found by WonTae Jang in WordPress LiteSpeed Cache plugin (versions <= 3.6).
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