CVE-2026-54420LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability
Bekannt ausgenutzt — LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability
CISA hat am 15.06.2026 bestätigt, dass diese Schwachstelle in echten Angriffen genutzt wird. Frist für US-Bundesbehörden: 18.06.2026.
Erforderliche Maßnahme: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-54420
Beschreibung
LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before 5.3.2.0) mishandles symlinks provided by a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS, as exploited in the wild in May 2026.
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| LiteSpeed Technologies | cPanel Plugin | 2.3 – < 2.4.8 | |
| litespeedtech | litespeed cpanel plugin | < 2.4.8 | |
| litespeedtech | litespeed whm plugin | < 5.3.2.0 |
Referenzen und Patches
- https://www.litespeedtech.com/products/litespeed-web-server/control-panel-support/cpanel Product
- https://blog.litespeedtech.com/2026/06/01/security-update-for-litespeed-cpanel-plugin-2/ Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-54420 US Government Resource
CPE-Treffer (NVD) (2)
cpe:2.3:a:litespeedtech:litespeed_cpanel_plugin:*:*:*:*:*:*:*:*< 2.4.8cpe:2.3:a:litespeedtech:litespeed_whm_plugin:*:*:*:*:*:*:*:*< 5.3.2.0