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 3 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
344new WordPress flaws this week
390,080entries in the database

18 results

  • Apr 5, 2026FileZilla 3.40.0 contains a denial of service vulnerability in the local search functionality that allows local attackers to crash the application by supplying CVE-2019-25683 · Other software · Filezilla-Project · reported by VulnCheckMedium 6.9

    FileZilla 3.40.0 contains a denial of service vulnerability in the local search functionality that allows local attackers to crash the application by supplying a malformed path string. Attackers can trigger the crash by entering a crafted path containing 384 'A' characters followed by 'BBBB' and 'CCCC' sequences in the search directory field and initiating a local search operation.

    Product
    FileZilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 19, 2025FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the appliCVE-2023-53959 · Other software · filezilla-project · reported by VulnCheckHigh 8.5

    FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the application directory. Attackers can generate a reverse shell payload using msfvenom and replace the missing DLL to achieve remote code execution when the application launches.

    Product
    FileZilla Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 18, 2022A vulnerability has been found in FileZilla Client 3.17.0.0 and classified as problematic.CVE-2016-15003 · Other software · FileZilla · reported by VulDBMedium 6.3

    A vulnerability has been found in FileZilla Client 3.17.0.0 and classified as problematic. This vulnerability affects unknown code of the file C:\Program Files\FileZilla FTP Client\uninstall.exe of the component Installer. The manipulation leads to unquoted search path. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

    Product
    Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 17, 2022A vulnerability, which was classified as problematic, was found in FileZilla Server up to 0.9.50.CVE-2015-10003 · Other software · FileZilla · reported by VulDBMedium 4.3

    A vulnerability, which was classified as problematic, was found in FileZilla Server up to 0.9.50. This affects an unknown part of the component PORT Handler. The manipulation leads to unintended intermediary. It is possible to initiate the attack remotely. Upgrading to version 0.9.51 is able to address this issue. It is recommended to upgrade the affected component.

    Product
    Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 7, 2022FileZilla v3.59.0 allows attackers to obtain cleartext passwords of connected SSH or FTP servers via a memory dump.- NOTE: the vendor does not consider this a vCVE-2022-29620 · Other software · Filezilla-project · reported by MITREMedium 6.5

    FileZilla v3.59.0 allows attackers to obtain cleartext passwords of connected SSH or FTP servers via a memory dump.- NOTE: the vendor does not consider this a vulnerability

    Product
    Filezilla Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 29, 2019Untrusted search path in FileZilla before 3.41.0-rc1 allows an attacker to gain privileges via a malicious 'fzsftp' binary in the user's home directory.CVE-2019-5429 · Other software · FileZilla · reported by support@hackerone.comHigh 7.8

    Untrusted search path in FileZilla before 3.41.0-rc1 allows an attacker to gain privileges via a malicious 'fzsftp' binary in the user's home directory.

    Product
    FileZilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 12, 2009Buffer overflow in FileZilla Server before 0.9.31 allows remote attackers to cause a denial of service via unspecified vectors related to SSL/TLS packets.CVE-2009-0884 · Other software · Filezilla-project · reported by MITREMedium 4.3

    Buffer overflow in FileZilla Server before 0.9.31 allows remote attackers to cause a denial of service via unspecified vectors related to SSL/TLS packets.

    Product
    Filezilla Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 26, 2007Multiple format string vulnerabilities in FileZilla before 2.2.32 allow remote attackers to execute arbitrary code via format string specifiers in (1) FTP serveCVE-2007-2318 · Other software · Filezilla · reported by MITREHigh 9.3

    Multiple format string vulnerabilities in FileZilla before 2.2.32 allow remote attackers to execute arbitrary code via format string specifiers in (1) FTP server responses or (2) data sent by an FTP server. NOTE: some of these details are obtained from third party information.

    Product
    Filezilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 17, 2007Format string vulnerability in the LogMessage function in FileZilla before 3.0.0-beta5 allows remote attackers to cause a denial of service (application crash) CVE-2007-0317 · Other software · Filezilla · reported by MITREHigh 7.5

    Format string vulnerability in the LogMessage function in FileZilla before 3.0.0-beta5 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted arguments. NOTE: some of these details are obtained from third party information.

    Product
    Filezilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 17, 2007Multiple buffer overflows in FileZilla before 2.2.30a allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspCVE-2007-0315 · Other software · Filezilla · reported by MITREHigh 9.3

    Multiple buffer overflows in FileZilla before 2.2.30a allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors related to (1) Options.cpp when storing settings in the registry, and (2) the transfer queue (QueueCtrl.cpp). NOTE: some of these details are obtained from third party information.

    Product
    Filezilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2006FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a wildcard argument to the (1) LIST or (2) NLST commands, which CVE-2006-6565 · Other software · Filezilla-project · reported by MITREMedium 4

    FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a wildcard argument to the (1) LIST or (2) NLST commands, which results in a NULL pointer dereference, a different set of vectors than CVE-2006-6564. NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command.

    Product
    Filezilla Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2006FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a malformed argument to the STOR command, which results in a NULCVE-2006-6564 · Other software · Filezilla · reported by MITREMedium 4

    FileZilla Server before 0.9.22 allows remote attackers to cause a denial of service (crash) via a malformed argument to the STOR command, which results in a NULL pointer dereference. NOTE: CVE analysis suggests that the problem might be due to a malformed PORT command.

    Product
    Filezilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 15, 2006Buffer overflow in FileZilla before 2.2.23 allows remote attackers to execute arbitrary commands via unknown attack vectors.CVE-2006-2403 · Other software · Filezilla · reported by MITREHigh 7.5

    Buffer overflow in FileZilla before 2.2.23 allows remote attackers to execute arbitrary commands via unknown attack vectors.

    Product
    Filezilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 4, 2006Buffer overflow in FileZilla FTP Server 2.2.22 allows remote authenticated attackers to cause a denial of service and possibly execute arbitrary code via a longCVE-2006-2173 · Other software · Filezilla · reported by MITREMedium 6.4

    Buffer overflow in FileZilla FTP Server 2.2.22 allows remote authenticated attackers to cause a denial of service and possibly execute arbitrary code via a long (1) PORT or (2) PASS followed by the MLSD command, or (2) the remote server interface, as demonstrated by the Infigo FTPStress Fuzzer.

    Product
    Filezilla Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 16, 2005Buffer overflow in FileZilla Server Terminal 0.9.4d may allow remote attackers to cause a denial of service (terminal crash) via a long USER ftp command.CVE-2005-3589 · Other software · Filezilla · reported by MITREHigh 7.8

    Buffer overflow in FileZilla Server Terminal 0.9.4d may allow remote attackers to cause a denial of service (terminal crash) via a long USER ftp command.

    Product
    Filezilla Server Terminal
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 14, 2005NOTE: this issue has been disputed by the vendor.CVE-2005-2898 · Other software · Filezilla · reported by MITREMedium 4.6

    NOTE: this issue has been disputed by the vendor. FileZilla 2.2.14b and 2.2.15, and possibly earlier versions, when "Use secure mode" is disabled, uses a weak encryption scheme to store the user's password in the configuration settings file, which allows local users to obtain sensitive information. NOTE: the vendor has disputed the issue, stating that "the problem is not a vulnerability at all, but in fact a fundamental issue of every single program that can store passwords transparently.

    Product
    Filezilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 2, 2005FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote attackers to cause a denial of service (infinite loop) via certain file uCVE-2005-0851 · Other software · Filezilla-project · reported by MITREMedium 5

    FileZilla FTP server before 0.9.6, when using MODE Z (zlib compression), allows remote attackers to cause a denial of service (infinite loop) via certain file uploads or directory listings.

    Product
    Filezilla Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 2, 2005FileZilla FTP server before 0.9.6 allows remote attackers to cause a denial of service via a request for a filename containing an MS-DOS device name such as CONCVE-2005-0850 · Other software · Filezilla-project · reported by MITREMedium 5

    FileZilla FTP server before 0.9.6 allows remote attackers to cause a denial of service via a request for a filename containing an MS-DOS device name such as CON, NUL, COM1, LPT1, and others.

    Product
    Filezilla 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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