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 2 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

8 results

  • Jun 23, 2025xdg-open in xdg-utils through 1.2.1 can send requests containing SameSite=Strict cookies, which can facilitate CSRF.CVE-2025-52968 · Other software · freedesktop · reported by MITRELow 2.7

    xdg-open in xdg-utils through 1.2.1 can send requests containing SameSite=Strict cookies, which can facilitate CSRF. (For example, xdg-open could be modified to, by default, associate x-scheme-handler/https with the execution of a browser with command-line options that arrange for an empty cookie store, although this would add substantial complexity, and would not be considered a desirable or expected behavior by all users.) NOTE: this is disputed because integrations of xdg-open typically do not provide information about whether the xdg-open command and arguments were manually entered by a user, or whether they were the result of a navigation from content in an untrusted origin.

    Product
    xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 18, 2022When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that shouCVE-2022-4055 · Other software · Freedesktop · reported by Red HatHigh 7.4

    When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.

    Product
    Xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 2, 2021The open_generic_xdg_mime function in xdg-open in xdg-utils 1.1.0 rc1 in Debian, when using dash, does not properly handle local variables, which allows remote CVE-2015-1877 · Other software · Freedesktop · reported by security@debian.orgHigh 8.8

    The open_generic_xdg_mime function in xdg-open in xdg-utils 1.1.0 rc1 in Debian, when using dash, does not properly handle local variables, which allows remote attackers to execute arbitrary commands via a crafted file.

    Product
    Xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 1, 2021A flaw was found in the xdg-email component of xdg-utils-1.1.0-rc1 and newer.CVE-2020-27748 · Other software · Freedesktop · reported by Red HatMedium 6.5

    A flaw was found in the xdg-email component of xdg-utils-1.1.0-rc1 and newer. When handling mailto: URIs, xdg-email allows attachments to be discreetly added via the URI when being passed to Thunderbird. An attacker could potentially send a victim a URI that automatically attaches a sensitive file to a new email. If a victim user does not notice that an attachment was added and sends the email, this could result in sensitive information disclosure. It has been confirmed that the code behind this issue is in xdg-email and not in Thunderbird.

    Product
    Xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 10, 2018The open_envvar function in xdg-open in xdg-utils before 1.1.3 does not validate strings before launching the program specified by the BROWSER environment variaCVE-2017-18266 · Other software · Freedesktop · reported by MITREHigh 8.8

    The open_envvar function in xdg-open in xdg-utils before 1.1.3 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL, as demonstrated by %s in this environment variable.

    Product
    Xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 21, 2015Eval injection vulnerability in xdg-utils 1.1.0 RC1, when no supported desktop environment is identified, allows context-dependent attackers to execute arbitrarCVE-2014-9622 · Other software · Gentoo · reported by security@debian.orgMedium 6.8

    Eval injection vulnerability in xdg-utils 1.1.0 RC1, when no supported desktop environment is identified, allows context-dependent attackers to execute arbitrary code via the URL argument to xdg-open.

    Product
    Xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 7, 2009Interaction error in xdg-open allows remote attackers to execute arbitrary code by sending a file with a dangerous MIME type but using a safe type that Firefox CVE-2009-0068 · Other software · Freedesktop · reported by Red HatMedium 6.8

    Interaction error in xdg-open allows remote attackers to execute arbitrary code by sending a file with a dangerous MIME type but using a safe type that Firefox sends to xdg-open, which causes xdg-open to process the dangerous file type through automatic type detection, as demonstrated by overwriting the .desktop file.

    Product
    Xdg-utils
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 4, 2008Xdg-utils 1.0.2 and earlier allows user-assisted remote attackers to execute arbitrary commands via shell metacharacters in a URL argument to (1) xdg-open or (2CVE-2008-0386 · Other software · Gentoo · reported by MITREMedium 6.8

    Xdg-utils 1.0.2 and earlier allows user-assisted remote attackers to execute arbitrary commands via shell metacharacters in a URL argument to (1) xdg-open or (2) xdg-email.

    Product
    Xdg-utils
    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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