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.
8 results
Sep 8, 2026Microsoft Windows Link Following VulnerabilityCVE-2026-81963 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM.
- Product
- Windows
- On CISA’s list since
- Sep 8, 2026 (federal fix deadline Sep 22, 2026)
- What to do
- Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogmsrc.microsoft.comcisa.gov
Jun 15, 2026LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following VulnerabilityCVE-2026-54420 · Other software · LiteSpeed · reported by MITREExploitedHigh 8.5
LiteSpeed cPanel plugin contains a UNIX symbolic link (Symlink) following vulnerability that could allow a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS.
- Product
- cPanel Plugin
- On CISA’s list since
- Jun 15, 2026 (federal fix deadline Jun 18, 2026)
- What to do
- Attackers are using this now. Install LiteSpeed’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogblog.litespeedtech.comlitespeedtech.com
May 20, 2026Microsoft Defender Link Following VulnerabilityCVE-2026-41091 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
- Product
- Defender
- On CISA’s list since
- May 20, 2026 (federal fix deadline Jun 3, 2026)
- What to do
- Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogmsrc.microsoft.comcisa.gov
Apr 13, 2026Microsoft Windows Link Following VulnerabilityCVE-2025-60710 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Windows contains a link following vulnerability that allows for privilege escalation
- Product
- Windows
- On CISA’s list since
- Apr 13, 2026 (federal fix deadline Apr 27, 2026)
- What to do
- Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogmsrc.microsoft.comvicarius.io
Mar 16, 2026Wing FTP Server Information Disclosure VulnerabilityCVE-2025-47813 · Other software · Wing FTP Server · reported by MITREExploitedMedium 4.3
Wing FTP Server contains a generation of error message containing sensitive information vulnerability when using a long value in the UID cookie.
- Product
- Wing FTP Server
- On CISA’s list since
- Mar 16, 2026 (federal fix deadline Mar 30, 2026)
- What to do
- Attackers are using this now. Install Wing FTP Server’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comrcesecurity.com
Aug 25, 2025Git Link Following VulnerabilityCVE-2025-48384 · Other software · Git · reported by GitHubExploitedHigh 8
Git contains a link following vulnerability that stems from Git’s inconsistent handling of carriage return characters in configuration files.
- Product
- Git
- On CISA’s list since
- Aug 25, 2025 (federal fix deadline Sep 15, 2025)
- What to do
- Attackers are using this now. Install Git’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comseclists.org
Jul 14, 2025Wing FTP Server Improper Neutralization of Null Byte or NUL Character VulnerabilityCVE-2025-47812 · Other software · Wing FTP Server · reported by MITREExploitedCritical 10
Wing FTP Server contains an improper neutralization of null byte or NUL character vulnerability that can allow injection of arbitrary Lua code into user session files. This can be used to execute arbitrary system commands with the privileges of the FTP service (root or SYSTEM by default).
- Product
- Wing FTP Server
- On CISA’s list since
- Jul 14, 2025 (federal fix deadline Aug 4, 2025)
- What to do
- Attackers are using this now. Install Wing FTP Server’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogrcesecurity.comvicarius.io
Feb 11, 2025Microsoft Windows Storage Link Following VulnerabilityCVE-2025-21391 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.1
Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.
- Product
- Windows
- On CISA’s list since
- Feb 11, 2025 (federal fix deadline Mar 4, 2025)
- What to do
- Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogmsrc.microsoft.comcisa.gov
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.
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.
Not ready to talk yet? Run the free website check and see what Google sees.