Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 4 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list
34added in the last 30 days
324new WordPress flaws this week
390,007entries in the database

10 results

  • Sep 30, 2026LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case."CVE-2026-93903 · Other software · litespeedtech · reported by MITRECritical 9.4

    LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case."

    Product
    LiteSpeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 23, 2026LiteSpeed Web Server Enterprise 5.4.11 contains an authenticated command injection vulnerability in the external app configuration interface.CVE-2021-47903 · Other software · LiteSpeed Technologies Inc · reported by VulnCheckHigh 8.6

    LiteSpeed Web Server Enterprise 5.4.11 contains an authenticated command injection vulnerability in the external app configuration interface. Authenticated administrators can inject shell commands through the 'Command' parameter in the server configuration, allowing remote code execution via path traversal and bash command injection.

    Product
    LiteSpeed Web Server Enterprise
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 27, 2022Untrusted Search Path vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server Container allows Privilege Escalation.CVE-2022-0074 · Other software · LiteSpeed Technologies · reported by psirt@paloaltonetworks.comHigh 8.8

    Untrusted Search Path vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server Container allows Privilege Escalation. This affects versions from 1.6.15 before 1.7.16.1.

    Product
    OpenLiteSpeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 27, 2022Improper Input Validation vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Command Injection.CVE-2022-0073 · Other software · LiteSpeed Technologies · reported by psirt@paloaltonetworks.comHigh 8.8

    Improper Input Validation vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Command Injection. This affects 1.7.0 versions before 1.7.16.1.

    Product
    OpenLiteSpeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 27, 2022Directory Traversal vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Path Traversal.CVE-2022-0072 · Other software · LiteSpeed Technologies · reported by psirt@paloaltonetworks.comMedium 5.8

    Directory Traversal vulnerability in LiteSpeed Technologies OpenLiteSpeed Web Server and LiteSpeed Web Server dashboards allows Path Traversal. This affects versions from 1.5.11 through 1.5.12, from 1.6.5 through 1.6.20.1, from 1.7.0 before 1.7.16.1

    Product
    OpenLiteSpeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 7, 2021Privilege Escalation in LiteSpeed Technologies OpenLiteSpeed web server version 1.7.8 allows attackers to gain root terminal access and execute commands on the CVE-2021-26758 · Other software · Litespeedtech · reported by MITREHigh 8.8

    Privilege Escalation in LiteSpeed Technologies OpenLiteSpeed web server version 1.7.8 allows attackers to gain root terminal access and execute commands on the host system.

    Product
    Openlitespeed
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 6, 2012Cross-site scripting (XSS) vulnerability in service/graph_html.php in the administrator panel in LiteSpeed Web Server 4.1.11 allows remote attackers to inject aCVE-2012-4871 · Other software · Litespeedtech · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in service/graph_html.php in the administrator panel in LiteSpeed Web Server 4.1.11 allows remote attackers to inject arbitrary web script or HTML via the gtitle parameter.

    Product
    Litespeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 18, 2010LiteSpeed Technologies LiteSpeed Web Server 4.0.x before 4.0.15 allows remote attackers to read the source code of scripts via an HTTP request with a null byte CVE-2010-2333 · Other software · Litespeedtech · reported by MITREMedium 5

    LiteSpeed Technologies LiteSpeed Web Server 4.0.x before 4.0.15 allows remote attackers to read the source code of scripts via an HTTP request with a null byte followed by a .txt file extension.

    Product
    Litespeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 23, 2007LiteSpeed Web Server before 3.2.4 allows remote attackers to trigger use of an arbitrary MIME type for a file via a "%00." sequence followed by a new extension,CVE-2007-5654 · Other software · Litespeed Technologies · reported by MITREMedium 5

    LiteSpeed Web Server before 3.2.4 allows remote attackers to trigger use of an arbitrary MIME type for a file via a "%00." sequence followed by a new extension, as demonstrated by reading PHP source code via requests for .php%00.txt files, aka "Mime Type Injection."

    Product
    Litespeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 20, 2005Cross-site scripting (XSS) vulnerability in admin/config/confMgr.php in LiteSpeed Web Server 2.1.5 allows remote attackers to inject arbitrary web script or HTMCVE-2005-3695 · Other software · Litespeed Technologies · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in admin/config/confMgr.php in LiteSpeed Web Server 2.1.5 allows remote attackers to inject arbitrary web script or HTML via the m parameter.

    Product
    Litespeed Web Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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