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 36 min 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.

1,764exploited flaws on CISA’s list
36added in the last 30 days
479new WordPress flaws this week
390,525entries in the database

4 results

  • Feb 6, 2026Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer.CVE-2020-37107 · Other software · Core FTP · reported by VulnCheckMedium 6.7

    Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer. Attackers can create a text file with 20,000 repeated characters and paste it into the account field to cause the application to become unresponsive and require reinstallation.

    Product
    Core FTP LE
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 2, 2021Buffer overflow in Core FTP LE v2.2 allows local attackers to cause a denial or service (crash) via a long string in the Setup->Users->Username editbox.CVE-2020-21588 · Other software · Coreftp · reported by MITREMedium 5.5

    Buffer overflow in Core FTP LE v2.2 allows local attackers to cause a denial or service (crash) via a long string in the Setup->Users->Username editbox.

    Product
    Core FTP
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 5, 2018Core FTP LE version 2.2 Build 1921 is prone to a buffer overflow vulnerability that may result in a DoS or remote code execution via a PASV response.CVE-2018-12113 · Other software · Coreftp · reported by MITRECritical 9.8

    Core FTP LE version 2.2 Build 1921 is prone to a buffer overflow vulnerability that may result in a DoS or remote code execution via a PASV response.

    Product
    Core FTP
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2014Multiple heap-based buffer overflows in the client in Core FTP LE 2.2 build 1798 allow remote FTP servers to cause a denial of service (application crash) and pCVE-2014-4643 · Other software · Coreftp · reported by MITREMedium 5

    Multiple heap-based buffer overflows in the client in Core FTP LE 2.2 build 1798 allow remote FTP servers to cause a denial of service (application crash) and possibly execute arbitrary code via a long string in a reply to a (1) USER, (2) PASS, (3) PASV, (4) SYST, (5) PWD, or (6) CDUP command.

    Product
    Core FTP
    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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