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.
6 results
Apr 24, 2026NSIS (Nullsoft Scriptable Install System) 3.06.1 before 3.12 sometimes uses the Low IL temp directory when executing as SYSTEM, allowing local attackers to gainCVE-2026-42171 · Other software · Nullsoft · reported by MITREHigh 7.8
NSIS (Nullsoft Scriptable Install System) 3.06.1 before 3.12 sometimes uses the Low IL temp directory when executing as SYSTEM, allowing local attackers to gain privileges (if they can cause my_GetTempFileName to return 0, as shown in the references).
- Product
- Nullsoft Scriptable Install System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 16, 2025Nullsoft Scriptable Install System (NSIS) before 3.11 on Windows allows local users to escalate privileges to SYSTEM during an installation, because the temporaCVE-2025-43715 · Other software · Nullsoft · reported by MITREHigh 8.1
Nullsoft Scriptable Install System (NSIS) before 3.11 on Windows allows local users to escalate privileges to SYSTEM during an installation, because the temporary plugins directory is created under %WINDIR%\temp and unprivileged users can place a crafted executable file by winning a race condition. This occurs because EW_CREATEDIR does not always set the CreateRestrictedDirectory error flag.
- Product
- Nullsoft Scriptable Install System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordnsis.sourceforge.iosourceforge.net
Jul 3, 2023Nullsoft Scriptable Install System (NSIS) before 3.09 mishandles access control for an uninstaller directory.CVE-2023-37378 · Other software · Nullsoft · reported by MITREMedium 5.3
Nullsoft Scriptable Install System (NSIS) before 3.09 mishandles access control for an uninstaller directory.
- Product
- Nullsoft Scriptable Install System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 1, 2018Nullsoft Scriptable Install System (NSIS) before 2.49 has unsafe implicit linking against Version.dll.CVE-2015-9268 · Other software · Nullsoft · reported by MITREHigh 7.8
Nullsoft Scriptable Install System (NSIS) before 2.49 has unsafe implicit linking against Version.dll. In other words, there is no protection mechanism in which a wrapper function resolves the dependency at an appropriate time during runtime.
- Product
- Nullsoft Scriptable Install System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjvn.jplists.debian.org
Oct 1, 2018Nullsoft Scriptable Install System (NSIS) before 2.49 uses temporary folder locations that allow unprivileged local users to overwrite files.CVE-2015-9267 · Other software · Nullsoft · reported by MITREMedium 5.5
Nullsoft Scriptable Install System (NSIS) before 2.49 uses temporary folder locations that allow unprivileged local users to overwrite files. This allows a local attack in which either a plugin or the uninstaller can be replaced by a Trojan horse program.
- Product
- Nullsoft Scriptable Install System
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjvn.jplists.debian.org
Mar 21, 2015The Inetc plugin for Nullsoft Scriptable Install System (NSIS), as used in CERT/CC Failure Observation Engine (FOE) and other products, does not verify X.509 ceCVE-2015-0941 · Other software · Inetc Project · reported by cret@cert.orgMedium 4.3
The Inetc plugin for Nullsoft Scriptable Install System (NSIS), as used in CERT/CC Failure Observation Engine (FOE) and other products, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and possibly execute arbitrary code by sending a crafted certificate in a download session for Windows executable files.
- Product
- Inetc
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordkb.cert.orgkb.cert.org
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.