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

21 results

  • May 26, 2026The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation.CVE-2026-44469 · Other software · CODESYS · reported by info@cert.vde.comHigh 8.5

    The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 26, 2026The affected product creates a directory with insecure default permissions during administrative installation.CVE-2026-44468 · Other software · CODESYS · reported by info@cert.vde.comHigh 8.5

    The affected product creates a directory with insecure default permissions during administrative installation. This allows a low-privileged local attacker to modify a temporary file defining the components to be installed, enabling local privilege escalation by forcing the deployment of arbitrary components.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 10, 2026If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevateCVE-2026-2364 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.3

    If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevated rights due to a TOCTOU vulnerability in the CODESYS installer.

    Product
    CODESYS Installer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 1, 2025An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS develCVE-2025-41700 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.8

    An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 6, 2024An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.CVE-2023-49676 · Other software · CODESYS · reported by info@cert.vde.comMedium 5.5

    An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.

    Product
    CODESYS Development System V2.3
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 6, 2024An unauthenticated local attacker may trick a user to open corrupted project files to execute arbitrary code or crash the system due to an out-of-bounds write vCVE-2023-49675 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.8

    An unauthenticated local attacker may trick a user to open corrupted project files to execute arbitrary code or crash the system due to an out-of-bounds write vulnerability.

    Product
    CODESYS Development System V2.3
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 3, 2023A missing Brute-Force protection in CODESYS Development System prior to 3.5.19.20 allows a local attacker to have unlimited attempts of guessing the password wiCVE-2023-3669 · Other software · CODESYS · reported by info@cert.vde.comLow 3.3

    A missing Brute-Force protection in CODESYS Development System prior to 3.5.19.20 allows a local attacker to have unlimited attempts of guessing the password within an import dialog.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 3, 2023In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulatCVE-2023-3663 · Other software · CODESYS · reported by info@cert.vde.comHigh 8.8

    In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 3, 2023In CODESYS Development System versions from 3.5.17.0 and prior to 3.5.19.20 a vulnerability allows for execution of binaries from the current working directory CVE-2023-3662 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.3

    In CODESYS Development System versions from 3.5.17.0 and prior to 3.5.19.20 a vulnerability allows for execution of binaries from the current working directory in the users context .

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 28, 2023In CODESYS Development System 3.5.9.0 to 3.5.17.0 and CODESYS Scripting 4.0.0.0 to 4.1.0.0 unsafe directory permissions would allow an attacker with local accesCVE-2023-3670 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.3

    In CODESYS Development System 3.5.9.0 to 3.5.17.0 and CODESYS Scripting 4.0.0.0 to 4.1.0.0 unsafe directory permissions would allow an attacker with local access to the workstation to place potentially harmful and disguised scripts that could be executed by legitimate users.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 15, 2023Inadequate Encryption Strength in CODESYS Development System V3 versions prior to V3.5.18.40 allows an unauthenticated local attacker to access and manipulate cCVE-2022-4048 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.7

    Inadequate Encryption Strength in CODESYS Development System V3 versions prior to V3.5.18.40 allows an unauthenticated local attacker to access and manipulate code of the encrypted boot application.

    Product
    CODESYS Development System V3
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 26, 2022In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), an attacker can identify valid usernames.CVE-2019-9011 · Other software · Pilz · reported by MITREMedium 5.3

    In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), an attacker can identify valid usernames.

    Product
    PMC
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 26, 2022In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), a user's password may be changed by an attacker without knowledge of the cCVE-2020-12067 · Other software · Pilz · reported by MITREHigh 7.5

    In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), a user's password may be changed by an attacker without knowledge of the current password.

    Product
    PMC
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 24, 2022In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.CVE-2022-31805 · Other software · CODESYS · reported by info@cert.vde.comHigh 7.5

    In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.

    Product
    CODESYS Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 25, 2021An unsafe deserialization vulnerability exists in the Engine.plugin ProfileInformation ProfileData functionality of CODESYS GmbH CODESYS Development System 3.5.CVE-2021-21869 · Other software · Codesys · reported by talos-cna@cisco.comHigh 7.8

    An unsafe deserialization vulnerability exists in the Engine.plugin ProfileInformation ProfileData functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

    Product
    Codesys
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 18, 2021An unsafe deserialization vulnerability exists in the ObjectManager.plugin Project.get_MissingTypes() functionality of CODESYS GmbH CODESYS Development System 3CVE-2021-21868 · Other software · Codesys · reported by talos-cna@cisco.comHigh 7.8

    An unsafe deserialization vulnerability exists in the ObjectManager.plugin Project.get_MissingTypes() functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

    Product
    Codesys
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 5, 2021A unsafe deserialization vulnerability exists in the ComponentModel Profile.FromFile() functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.1CVE-2021-21863 · Other software · Codesys · reported by talos-cna@cisco.comHigh 7.8

    A unsafe deserialization vulnerability exists in the ComponentModel Profile.FromFile() functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

    Product
    Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 2, 2021A unsafe deserialization vulnerability exists in the PackageManagement.plugin ExtensionMethods.Clone() functionality of CODESYS GmbH CODESYS Development System CVE-2021-21865 · Other software · Codesys · reported by talos-cna@cisco.comHigh 7.8

    A unsafe deserialization vulnerability exists in the PackageManagement.plugin ExtensionMethods.Clone() functionality of CODESYS GmbH CODESYS Development System 3.5.16. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

    Product
    Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 4, 2021The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before installation and may be used to install CODESCVE-2021-29240 · Other software · Codesys · reported by MITREHigh 7.8

    The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before installation and may be used to install CODESYS packages with malicious content.

    Product
    Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 3, 2021CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files embedded in libraries without first checking their validity.CVE-2021-29239 · Other software · Codesys · reported by MITREHigh 7.8

    CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files embedded in libraries without first checking their validity.

    Product
    Development System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 14, 2020An issue was discovered in CODESYS Development System before 3.5.16.0.CVE-2020-12068 · Other software · Codesys · reported by MITREMedium 6.5

    An issue was discovered in CODESYS Development System before 3.5.16.0. CODESYS WebVisu and CODESYS Remote TargetVisu are susceptible to privilege escalation.

    Product
    Control For Beaglebone
    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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