LiteSpeed Cache < 4.4.4 - IP Check Bypass to Unauthenticated Stored XSS
CVE-2021-24964

6.1MEDIUM

Key Information:

Vendor
Wordpress
Status
Litespeed Cache
Vendor
CVE Published:
3 January 2022

Summary

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.

Affected Version(s)

LiteSpeed Cache 4.4.4

References

https://wpscan.com/vulnerability/e9966b3e-2eb9-4d70-8c18-...
x_refsource_MISC

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Emil Kylander
.