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, which will then be output in some pages without being sanitised and escaped. Combining those two issues, an unauthenticated attacker could put Cross-Site Scripting payloads in pages visited by users.
CVE-2021-24964 is a medium severity with CVSS 6.5 Cross-Site Scripting issue affecting the Plugin LiteSpeed Cache. It affects 1.0.15 through 4.4.3 and is fixed in 4.4.4.
CVE-2021-24964 is tracked for the Plugin LiteSpeed Cache as medium severity with CVSS 6.5. The affected range is 1.0.15 through 4.4.3. Update LiteSpeed Cache to 4.4.4 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
litespeed-cache
View on wordpress.org
|
| CVE | CVE-2021-24964 |
| Patched Versions |
4.4.4
|
| Affected Versions |
1.0.15 through 4.4.3
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
LiteSpeed Cache <= 6.3.0.1 - Unauthenticated Privilege Escalation
LiteSpeed Cache <= 6.5.1 - Unauthenticated Privilege Escalation
LiteSpeed Cache <= 6.4.1 - Unauthenticated Sensitive Information Exposure via Log Files
LiteSpeed Cache <= 6.1 - Unauthenticated Stored Cross-Site Scripting
LiteSpeed Cache <= 5.7 - Unauthenticated Stored Cross-Site Scripting via 'nameservers' and '_msg'
LiteSpeed Cache <= 6.5.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
LiteSpeed Cache <= 6.5.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
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