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

7 results

  • Nov 18, 2025Incomplete validation of rich response messages in WhatsApp for iOS prior to v2.25.23.73, WhatsApp Business for iOS v2.25.23.82, and WhatsApp for Mac v2.25.23.8CVE-2025-55179 · Other software · Facebook · reported by cve-assign@fb.comMedium 5.4

    Incomplete validation of rich response messages in WhatsApp for iOS prior to v2.25.23.73, WhatsApp Business for iOS v2.25.23.82, and WhatsApp for Mac v2.25.23.83 could have allowed a user to trigger processing of media content from an arbitrary URL on another user’s device. We have not seen evidence of exploitation in the wild.

    Product
    WhatsApp Business for iOS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 23, 2022An integer underflow in WhatsApp could have caused remote code execution when receiving a crafted video file.CVE-2022-27492 · Other software · Meta · reported by cve-assign@fb.comHigh 7.8

    An integer underflow in WhatsApp could have caused remote code execution when receiving a crafted video file.

    Product
    WhatsApp Business for iOS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 6, 2021A missing bounds check within the audio decoding pipeline for WhatsApp calls in WhatsApp for Android prior to v2.21.3, WhatsApp Business for Android prior to v2CVE-2021-24026 · Other software · Facebook · reported by cve-assign@fb.comCritical 9.8

    A missing bounds check within the audio decoding pipeline for WhatsApp calls in WhatsApp for Android prior to v2.21.3, WhatsApp Business for Android prior to v2.21.3, WhatsApp for iOS prior to v2.21.32, and WhatsApp Business for iOS prior to v2.21.32 could have allowed an out-of-bounds write.

    Product
    WhatsApp Business for iOS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 3, 2020A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corrCVE-2020-1909 · Other software · Facebook · reported by cve-assign@fb.comCritical 9.8

    A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold.

    Product
    WhatsApp Business for iOS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 3, 2020Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could have permitted use of Siri to interact withCVE-2020-1908 · Other software · Facebook · reported by cve-assign@fb.comMedium 4.6

    Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could have permitted use of Siri to interact with the WhatsApp application even after the phone was locked.

    Product
    WhatsApp Business for iOS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 6, 2020A path validation issue in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have allowed for directory traversal overwriCVE-2020-1904 · Other software · Facebook · reported by cve-assign@fb.comMedium 5.5

    A path validation issue in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have allowed for directory traversal overwriting files when sending specially crafted docx, xlsx, and pptx files as attachments to messages.

    Product
    WhatsApp for iOS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 6, 2020An issue when unzipping docx, pptx, and xlsx documents in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have resultedCVE-2020-1903 · Other software · Facebook · reported by cve-assign@fb.comMedium 5.5

    An issue when unzipping docx, pptx, and xlsx documents in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have resulted in an out-of-memory denial of service. This issue would have required the receiver to explicitly open the attachment if it was received from a number not in the receiver's WhatsApp contacts.

    Product
    WhatsApp for iOS
    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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.