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.
4 results
Sep 10, 2026OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execuCVE-2026-65639 · Other software · WebPros · reported by support@hackerone.comCritical 9.5
OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data. The vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.
- Product
- ConfigServer Security & Firewall
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 10, 2026Improper escaping of a request URL in ConfigServer Security & Firewall allows an unauthenticated remote attacker to execute arbitrary commands as the CSF serviCVE-2026-65638 · Other software · WebPros · reported by support@hackerone.comCritical 9.2
Improper escaping of a request URL in ConfigServer Security & Firewall allows an unauthenticated remote attacker to execute arbitrary commands as the CSF service account via shell command injection. The vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.
- Product
- ConfigServer Security & Firewall
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 3, 2026An insecure Apache configuration in ConfigServer Security & Firewall maps /usr/bin as CGI programs through the Messenger v3 HTTPS virtual host.CVE-2026-67402 · Other software · WebPros · reported by support@hackerone.comCritical 9.2
An insecure Apache configuration in ConfigServer Security & Firewall maps /usr/bin as CGI programs through the Messenger v3 HTTPS virtual host. A remote unauthenticated attacker whose address is blocked can request a mapped executable and run arbitrary commands as the Apache user. The vulnerability affects installations where CSF Messenger v3 and its HTTPS mode are enabled. WebPros addressed the vulnerability in version 16.31.
- Product
- ConfigServer Security & Firewall
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 29, 2011Stack-based buffer overflow in CFS.c in ConfigServer Security & Firewall (CSF) before 5.43, when running on a DirectAdmin server, allows local users to cause a CVE-2011-5033 · Other software · Configserver · reported by MITREMedium 4.4
Stack-based buffer overflow in CFS.c in ConfigServer Security & Firewall (CSF) before 5.43, when running on a DirectAdmin server, allows local users to cause a denial of service (crash) via a long string in an admin.list file.
- Product
- Configserver Security Firewall
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordforum.configserver.comconfigserver.com
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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