CVE-2023-4372: fallo de gravedad media en litespeedtech LiteSpeed Cache
LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
18Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.4epss 20%
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 permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Productos afectados
litespeedtech · LiteSpeed CacheCVEs relacionadas — litespeedtech LiteSpeed Cache
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-18978HIGHLiteSpeed Cache <= 7.8.1 - Unauthenticated Stored Cross-Site Scripting via Comment ContentEPSS 0.4%CVE-2026-76579MEDIUMLiteSpeed Cache <= 7.9 - Reflected Cross-Site Scripting via ESI 'esi' ParameterEPSS 0.4%CVE-2025-12450MEDIUMLiteSpeed Cache <= 7.5.0.1 - Reflected Cross-Site ScriptingEPSS 0.4%CVE-2026-3375HIGHLiteSpeed Cache <= 7.7 - Unauthenticated Stored Cross-Site Scripting via QUIC.cloud CCSS/UCSS REST API EndpointsEPSS 0.4%CVE-2026-116763MEDIUMLiteSpeed Cache <= 7.9.1 - Unauthenticated Stored Cross-Site Scripting via HTML Minifier Predictable Placeholder (md5(REQUEST_TIME) + two-pass str_replace)EPSS 0.3%CVE-2026-109215MEDIUMLiteSpeed Cache <= 7.9.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via VPI Image Attribute Re-SerializationEPSS 0.3%
Referencias
https://github.com/litespeedtech/lscache_wp/commit/95a407d9f192b37ac6cf96d2aa50f240e3e6b2d7#diff-7b2c514b58d1b8a71655607bdfab87cedb013bc1b8927ce0b49a89ddf4a7e01cR495https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/5.5.1/src/esi.cls.php#L480https://plugins.trac.wordpress.org/changeset/2977143/litespeed-cache#file348https://www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-9973-4b9cb8a90da5?source=cve