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CVE-2021-24964

Estado: ModificadaMedia (6.1)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Litespeedtech — Litespeed Cache

CWE

Referencias

JSON original (NVD)

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      "value": "El plugin LiteSpeed Cache de WordPress versiones anteriores a 4.4.4, no verifica correctamente que las peticiones proceden de servidores QUIC.cloud, permitiendo a atacantes realizar peticiones a determinados endpoints usando un valor de encabezado X-Forwarded-For específico. Además, uno de los endpoints podría ser usado para establecer código CSS si es habilitado un ajuste, que luego será emitido en algunas páginas sin ser saneado y escapado. Combinando estos dos problemas, un atacante no autenticado podría poner cargas útiles de tipo Cross-Site Scripting en las páginas visitadas por los usuarios"
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  "lastModified": "2026-06-17T03:41:12.480",
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