CISA Flags LiteSpeed cPanel Plugin Flaw Exploited for Root Privilege Escalation

The U.S. Cybersecurity and Infrastructure Security Agency CISA has added a security flaw impacting LiteSpeed cPanel Plugin to its Known Exploited Vulnerabilities KEV catalog, requiring Federal Civilian Executive Branch FCEB agencies to apply the fixes by June 18, 2026. The vulnerability in questi...

CVE-2026-54420

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...

CVE-2026-54420

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...

EUVD-2026-36657

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...

CVE-2026-54420

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...

CVE-2026-54420

CVE-2026-54420 is a symlink-following vulnerability in LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM Plugin before 5.3.2.0). A user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS can abuse improperly validated symbolic links to access or ...

PT-2026-49104

Name of the Vulnerable Software and Affected Versions LiteSpeed cPanel plugin versions prior to 2.4.8 LiteSpeed WHM PlugIn versions prior to 5.3.2.0 Description A symlink-following flaw exists in the LiteSpeed cPanel plugin where the software improperly handles symbolic links provided by a user. ...

CVE-2026-5422

A flaw was found in jupyter-server. This path traversal vulnerability exists due to insufficient validation of file paths, specifically an incorrect root directory boundary check and improper handling of directory traversal sequences. This allows a remote attacker with low privileges to bypass...

EUVD-2026-33905

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the getospath function within jupyterserver/services/contents/fileio.py. The check uses startswithroot without appending a trailing path separator, allowing sibling...

VulnCheck KEV: CVE-2026-54420

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...

Behind the Curtain: How Shared Hosting Providers Respond to Vulnerability Notifications

Large-scale vulnerability notifications VNs can help hosting provider organizations HPOs identify and remediate security vulnerabilities that attackers can exploit in data breaches or phishing campaigns. Previous VN studies have primarily focused on factors under the control of reporters, such as...

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Linux Distros Unpatched Vulnerability : CVE-2023-5550

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user who also has direct access to the web server...

Linux Distros Unpatched Vulnerability : CVE-2024-34005

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user with both access to restore database activity...