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 5 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

26 results

  • Dec 15, 2025Apple Multiple Products Use-After-Free WebKit VulnerabilityCVE-2025-43529 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and other Apple products contain a use-after-free vulnerability in WebKit. Processing maliciously crafted web content may lead to memory corruption. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Dec 15, 2025 (federal fix deadline Jan 5, 2026)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Mar 13, 2025Apple Multiple Products WebKit Out-of-Bounds Write VulnerabilityCVE-2025-24201 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedCritical 10

    Apple iOS, iPadOS, macOS, and other Apple products contain an out-of-bounds write vulnerability in WebKit that may allow maliciously crafted web content to break out of Web Content sandbox. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Mar 13, 2025 (federal fix deadline Apr 3, 2025)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jan 23, 2024Apple Multiple Products WebKit Type Confusion VulnerabilityCVE-2024-23222 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Jan 23, 2024 (federal fix deadline Feb 13, 2024)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Dec 4, 2023Apple Multiple Products WebKit Out-of-Bounds Read VulnerabilityCVE-2023-42916 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedMedium 6.5

    Apple iOS, iPadOS, macOS, and Safari WebKit contain an out-of-bounds read vulnerability that may disclose sensitive information when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Dec 4, 2023 (federal fix deadline Dec 25, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Dec 4, 2023Apple Multiple Products WebKit Memory Corruption VulnerabilityCVE-2023-42917 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and Safari WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Dec 4, 2023 (federal fix deadline Dec 25, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Sep 25, 2023Apple Multiple Products WebKit Code Execution VulnerabilityCVE-2023-41993 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and Safari WebKit contain an unspecified vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Sep 25, 2023 (federal fix deadline Oct 16, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jul 13, 2023Apple Multiple Products WebKit Code Execution VulnerabilityCVE-2023-37450 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and Safari WebKit contain an unspecified vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Jul 13, 2023 (federal fix deadline Aug 3, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jun 23, 2023Apple Multiple Products WebKit Memory Corruption VulnerabilityCVE-2023-32435 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and Safari WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Jun 23, 2023 (federal fix deadline Jul 14, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jun 23, 2023Apple Multiple Products WebKit Type Confusion VulnerabilityCVE-2023-32439 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Jun 23, 2023 (federal fix deadline Jul 14, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 22, 2023Apple Multiple Products WebKit Out-of-Bounds Read VulnerabilityCVE-2023-28204 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedMedium 6.5

    Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an out-of-bounds read vulnerability that may disclose sensitive information when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    May 22, 2023 (federal fix deadline Jun 12, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 22, 2023Apple Multiple Products WebKit Use-After-Free VulnerabilityCVE-2023-32373 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    May 22, 2023 (federal fix deadline Jun 12, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 22, 2023Apple Multiple Products WebKit Sandbox Escape VulnerabilityCVE-2023-32409 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.6

    Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain an unspecified vulnerability that can allow a remote attacker to break out of the Web Content sandbox. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    May 22, 2023 (federal fix deadline Jun 12, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Apr 10, 2023Apple Multiple Products WebKit Use-After-Free VulnerabilityCVE-2023-28205 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, and Safari WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Apr 10, 2023 (federal fix deadline May 1, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Feb 14, 2023Apple Multiple Products WebKit Type Confusion VulnerabilityCVE-2023-23529 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, MacOS, Safari and iPadOS WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Feb 14, 2023 (federal fix deadline Mar 7, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 24, 2022Apple iOS Webkit Memory Corruption VulnerabilityCVE-2016-4657 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS WebKit contains a memory corruption vulnerability that allows attackers to execute remote code or cause a denial-of-service (DoS) via a crafted web site. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS
    On CISA’s list since
    May 24, 2022 (federal fix deadline Jun 14, 2022)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 23, 2022WebKitGTK Memory Corruption VulnerabilityCVE-2019-8720 · Other software · WebKitGTK · reported by Red HatExploitedHigh 8.8

    WebKitGTK contains a memory corruption vulnerability which can allow an attacker to perform remote code execution.

    Product
    WebKitGTK
    On CISA’s list since
    May 23, 2022 (federal fix deadline Jun 13, 2022)
    What to do
    Attackers are using this now. Install WebKitGTK’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Feb 11, 2022Apple iOS, iPadOS, and macOS Webkit Use-After-Free VulnerabilityCVE-2022-22620 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, and macOS WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS, iPadOS, and macOS
    On CISA’s list since
    Feb 11, 2022 (federal fix deadline Feb 25, 2022)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple Multiple Products WebKit Memory Corruption VulnerabilityCVE-2021-30665 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, watchOS, and tvOS WebKit contain a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS WebKit Memory Corruption VulnerabilityCVE-2021-30761 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS WebKit contains a memory corruption vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple Multiple Products WebKit Integer Overflow VulnerabilityCVE-2021-30663 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain an integer overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS, iPadOS, and macOS WebKit Remote Code Execution VulnerabilityCVE-2021-1870 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedCritical 9.8

    Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS, iPadOS, and macOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS, iPadOS, and macOS WebKit Remote Code Execution VulnerabilityCVE-2021-1871 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedCritical 9.8

    Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS, iPadOS, and macOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) VulnerabilityCVE-2021-1879 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedMedium 6.1

    Apple iOS, iPadOS, and watchOS WebKit contain an unspecified vulnerability that allows for universal cross-site scripting (XSS) when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS, iPadOS, and watchOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple Multiple Products WebKit Storage Use-After-Free VulnerabilityCVE-2021-30661 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit Storage contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    Multiple Products
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS WebKit Buffer Overflow VulnerabilityCVE-2021-30666 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS WebKit contains a buffer-overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS WebKit Use-After-Free VulnerabilityCVE-2021-30762 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.8

    Apple iOS WebKit contains a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

    Product
    iOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.

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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