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.
10 results
Jun 29, 2026SimpleHelp Authentication Bypass VulnerabilityCVE-2026-48558 · Other software · SimpleHelp · reported by VulnCheckExploitedCritical 9.5
SimpleHelp contains an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication.
- Product
- SimpleHelp
- On CISA’s list since
- Jun 29, 2026 (federal fix deadline Jul 2, 2026)
- What to do
- Attackers are using this now. Install SimpleHelp ’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 cataloghorizon3.aisimple-help.com
Apr 24, 2026SimpleHelp Missing Authorization VulnerabilityCVE-2024-57726 · Other software · SimpleHelp · reported by MITREExploitedRansomwareCritical 9.9
SimpleHelp contains a missing authorization vulnerability that could allow low-privileged technicians to create API keys with excessive permissions. These API keys can be used to escalate privileges to the server admin role.
- Product
- SimpleHelp
- On CISA’s list since
- Apr 24, 2026 (federal fix deadline May 8, 2026)
- What to do
- Attackers are using this now. Install SimpleHelp ’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 catalogsimple-help.comhorizon3.ai
Apr 24, 2026SimpleHelp Path Traversal VulnerabilityCVE-2024-57728 · Other software · SimpleHelp · reported by MITREExploitedRansomwareHigh 7.2
SimpleHelp contains a path traversal vulnerability that allows admin users to upload arbitrary files anywhere on the file system by uploading a crafted zip file (i.e. zip slip). This can be exploited to execute arbitrary code on the host in the context of the SimpleHelp server user.
- Product
- SimpleHelp
- On CISA’s list since
- Apr 24, 2026 (federal fix deadline May 8, 2026)
- What to do
- Attackers are using this now. Install SimpleHelp ’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 catalogsimple-help.comhorizon3.ai
Mar 9, 2026SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityCVE-2025-26399 · Other software · SolarWinds · reported by psirt@solarwinds.comExploitedRansomwareCritical 9.8
SolarWinds Web Help Desk contain a deserialization of untrusted data vulnerability in AjaxProxy that could allow an attacker to run commands on the host machine.
- Product
- Web Help Desk
- On CISA’s list since
- Mar 9, 2026 (federal fix deadline Mar 12, 2026)
- What to do
- Attackers are using this now. Install SolarWinds’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 catalogdocumentation.solarwinds.comsolarwinds.com
Feb 12, 2026SolarWinds Web Help Desk Security Control Bypass VulnerabilityCVE-2025-40536 · Other software · SolarWinds · reported by psirt@solarwinds.comExploitedHigh 8.1
SolarWinds Web Help Desk contains a security control bypass vulnerability that could allow an unauthenticated attacker to gain access to certain restricted functionality.
- Product
- Web Help Desk
- On CISA’s list since
- Feb 12, 2026 (federal fix deadline Feb 15, 2026)
- What to do
- Attackers are using this now. Install SolarWinds’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 catalogdocumentation.solarwinds.comsolarwinds.com
Feb 3, 2026SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityCVE-2025-40551 · Other software · SolarWinds · reported by psirt@solarwinds.comExploitedCritical 9.8
SolarWinds Web Help Desk contains a deserialization of untrusted data vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine. This could be exploited without authentication.
- Product
- Web Help Desk
- On CISA’s list since
- Feb 3, 2026 (federal fix deadline Feb 6, 2026)
- What to do
- Attackers are using this now. Install SolarWinds’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 catalogdocumentation.solarwinds.comsolarwinds.com
Feb 13, 2025SimpleHelp Path Traversal VulnerabilityCVE-2024-57727 · Other software · SimpleHelp · reported by MITREExploitedRansomwareHigh 7.5
SimpleHelp remote support software contains multiple path traversal vulnerabilities that allow unauthenticated remote attackers to download arbitrary files from the SimpleHelp host via crafted HTTP requests. These files may include server configuration files and hashed user passwords.
- Product
- SimpleHelp
- On CISA’s list since
- Feb 13, 2025 (federal fix deadline Mar 6, 2025)
- What to do
- Attackers are using this now. Install SimpleHelp ’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 catalogsimple-help.comhorizon3.ai
Oct 15, 2024SolarWinds Web Help Desk Hardcoded Credential VulnerabilityCVE-2024-28987 · Other software · SolarWinds · reported by psirt@solarwinds.comExploitedCritical 9.1
SolarWinds Web Help Desk contains a hardcoded credential vulnerability that could allow a remote, unauthenticated user to access internal functionality and modify data.
- Product
- Web Help Desk
- On CISA’s list since
- Oct 15, 2024 (federal fix deadline Nov 5, 2024)
- What to do
- Attackers are using this now. Install SolarWinds’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 catalogsupport.solarwinds.comsolarwinds.com
Aug 15, 2024SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityCVE-2024-28986 · Other software · SolarWinds · reported by psirt@solarwinds.comExploitedCritical 9.8
SolarWinds Web Help Desk contains a deserialization of untrusted data vulnerability that could allow for remote code execution.
- Product
- Web Help Desk
- On CISA’s list since
- Aug 15, 2024 (federal fix deadline Sep 5, 2024)
- What to do
- Attackers are using this now. Install SolarWinds’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 catalogsupport.solarwinds.comsolarwinds.com
Mar 25, 2022QNAP Helpdesk Improper Access Control VulnerabilityCVE-2020-2506 · Network & remote access · QNAP Systems · reported by security@qnapsecurity.com.twExploitedHigh 7.3
QNAP Helpdesk contains an improper access control vulnerability which could allow an attacker to gain privileges or to read sensitive information.
- Product
- Helpdesk
- On CISA’s list since
- Mar 25, 2022 (federal fix deadline Apr 15, 2022)
- What to do
- Attackers are using this now. Install QNAP Systems’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 catalogqnap.comqnap.com
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.