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    CVE-2021-24964

    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.

    Published:Jan 3, 2022
    Last Modified:May 22, 2025
    EPS:Jan 3, 2022
    EPSS Score:0.14825
    CVSS Score:6.1

    Affected Products

    Vendor
    Litespeedtech
    Product
    Litespeed Cache

    Exploits

    https://wpscan.com/vulnerability/e9966b3e-2eb9-4d70-8c18-6a829b4827cchttps://wpscan.com/vulnerability/e9966b3e-2eb9-4d70-8c18-6a829b4827cc

    Related CVEs

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    CVE-2025-12450 (CVSS 6.1) — The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URLs in all versi…
    CVE-2024-50550 (CVSS 8.1) — Incorrect Privilege Assignment vulnerability in LiteSpeed Technologies LiteSpeed Cache litespeed-cache allows …
    CVE-2024-44000 (CVSS 9.8) — Insufficiently Protected Credentials vulnerability in LiteSpeed Technologies LiteSpeed Cache litespeed-cache a…
    CVE-2024-47637 (CVSS 8.8) — Relative Path Traversal vulnerability in LiteSpeed Technologies LiteSpeed Cache litespeed-cache allows Path Tr…
    CVE-2024-47373 (CVSS 6.5) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LiteSpee…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High