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 10 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

4 results

  • Nov 7, 2025Potential Denial of Service issue in all supported versions of Revenera InstallShield version 2025 R1, 2024 R2, 2023 R2, and prior.CVE-2025-12418 · Other software · Revenera · reported by PSIRT-CNA@flexerasoftware.comMedium 5.6

    Potential Denial of Service issue in all supported versions of Revenera InstallShield version 2025 R1, 2024 R2, 2023 R2, and prior. When e.g., a local administrator performs an uninstall, a symlink may get followed on removal of a user writeable configuration directory and induce a Denial of Service as a result. The issue is resolved through the hotfixes InstallShield2025R1-CVE-2025-12418-SecurityPatch, InstallShield2024R2-CVE-2025-12418-SecurityPatch, and InstallShield2023R2-CVE-2025-12418-SecurityPatch.

    Product
    InstallShield
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 29, 2025Potential privilege escalation issue in Revenera InstallShield version 2023 R1 running a renamed Setup.exe on Windows.CVE-2024-14012 · Other software · Revenera · reported by PSIRT-CNA@flexerasoftware.comHigh 7.3

    Potential privilege escalation issue in Revenera InstallShield version 2023 R1 running a renamed Setup.exe on Windows. When a local administrator executes a renamed Setup.exe, the MPR.dll may get loaded from an insecure location and can result in a privilege escalation. The issue has been fixed in versions 2023 R2 and later.

    Product
    InstallShield
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 30, 2025Potential privilege escalation vulnerability in Revenera InstallShield versions 2022 R2 and 2021 R2 due to adding InstallScript custom action to a Basic MSI or CVE-2023-29080 · Other software · Revenera · reported by PSIRT-CNA@flexerasoftware.comHigh 8.5

    Potential privilege escalation vulnerability in Revenera InstallShield versions 2022 R2 and 2021 R2 due to adding InstallScript custom action to a Basic MSI or InstallScript MSI project extracting few binaries to a predefined writable folder during installation time. The standard user account has write access to these files and folders, hence replacing them during installation time can lead to a DLL hijacking vulnerability.

    Product
    InstallShield
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 29, 2023A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action.CVE-2021-41526 · Other software · flexera · reported by PSIRT-CNA@flexerasoftware.comHigh 7.8

    A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.

    Product
    revenera_installshield
    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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