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 11 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
343new WordPress flaws this week
390,080entries in the database

8 results

  • Apr 30, 2026Unauthenticated attackers can exploit a weakness in the XML parser functionality of the SOAP endpoints in 4D server.CVE-2024-39847 · Other software · 4D · reported by 23637b5d-af4c-4cf9-b8f6-deb7fd0f8423High 8.7

    Unauthenticated attackers can exploit a weakness in the XML parser functionality of the SOAP endpoints in 4D server. This allows them to obtain read access to files on the application server and adjacent network shares, and perform HTTP GET requests to arbitrary services.

    Product
    4D Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 30, 2023An uncontrolled search path element vulnerability has been found on 4D and 4D server Windows executables applications, affecting version 19 R8 100218.CVE-2023-4770 · Other software · 4D · reported by cve-coordination@incibe.esMedium 6.5

    An uncontrolled search path element vulnerability has been found on 4D and 4D server Windows executables applications, affecting version 19 R8 100218. This vulnerability consists in a DLL hijacking by replacing x64 shfolder.dll in the installation path, causing an arbitrary code execution.

    Product
    4D.exe
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 16, 2023A broken authentication vulnerability in 4D SAS 4D Server software v17, v18, v19 R7, and earlier allows attackers to send crafted TCP packets containing requestCVE-2023-30223 · Other software · 4d · reported by MITREHigh 7.5

    A broken authentication vulnerability in 4D SAS 4D Server software v17, v18, v19 R7, and earlier allows attackers to send crafted TCP packets containing requests to perform arbitrary actions.

    Product
    Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 16, 2023An information disclosure vulnerability in 4D SAS 4D Server Application v17, v18, v19 R7 and earlier allows attackers to retrieve password hashes for all users CVE-2023-30222 · Other software · 4d · reported by MITREHigh 7.5

    An information disclosure vulnerability in 4D SAS 4D Server Application v17, v18, v19 R7 and earlier allows attackers to retrieve password hashes for all users via eavesdropping.

    Product
    Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 13, 2005Format string vulnerability in search.c in the imap4d server in GNU Mailutils 0.6 allows remote authenticated users to execute arbitrary code via format string CVE-2005-2878 · Other software · GNU · reported by MITREHigh 7.5

    Format string vulnerability in search.c in the imap4d server in GNU Mailutils 0.6 allows remote authenticated users to execute arbitrary code via format string specifiers in the SEARCH command.

    Product
    Mailutils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 26, 2005Integer overflow in the fetch_io function of the imap4d server in GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows remote attackers to executCVE-2005-1521 · Other software · GNU · reported by MITREHigh 7.5

    Integer overflow in the fetch_io function of the imap4d server in GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows remote attackers to execute arbitrary code via a partial message request with a large value in the END parameter, which leads to a heap-based buffer overflow.

    Product
    Mailutils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 26, 2005Format string vulnerability in imap4d server in GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows remote attackers to execute arbitrary code vCVE-2005-1523 · Other software · GNU · reported by MITREHigh 7.5

    Format string vulnerability in imap4d server in GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows remote attackers to execute arbitrary code via format string specifiers in the command tag for IMAP commands.

    Product
    Mailutils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 26, 2005The imap4d server for GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows authenticated remote users to cause a denial of service (CPU consumptiCVE-2005-1522 · Other software · GNU · reported by MITREMedium 5

    The imap4d server for GNU Mailutils 0.5 and 0.6, and other versions before 0.6.90, allows authenticated remote users to cause a denial of service (CPU consumption) via a large range value in the FETCH command.

    Product
    Mailutils
    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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