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.
5 results
Jul 15, 2026AdGuard Home is a network-wide software for blocking ads and tracking.CVE-2026-47703 · Other software · AdguardTeam · reported by GitHubMedium 6.3
AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dns_id=0 or txid=0 and exposed a quoted-port ICMP source-port oracle, weakening DNS response matching for forwarded queries. This issue is fixed in version 0.107.75.
- Product
- AdGuardHome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 8, 2026AdGuard Home, when started with the --glinet flag, contains an authentication bypass vulnerability that allows unauthenticated attackers to gain full admin acceCVE-2026-41448 · Other software · AdguardTeam · reported by VulnCheckCritical 9.2
AdGuard Home, when started with the --glinet flag, contains an authentication bypass vulnerability that allows unauthenticated attackers to gain full admin access by supplying a path traversal sequence in the Admin-Token cookie, exploiting unsanitized string concatenation in the token file path construction within the authglinet middleware. Attackers can craft a request with a traversal payload in the Admin-Token header to redirect file reads to arbitrary paths.
- Product
- AdGuardHome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comvulncheck.com
Mar 11, 2026AdGuard Home is a network-wide software for blocking ads and tracking.CVE-2026-32136 · Other software · AdguardTeam · reported by GitHubCritical 9.8
AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.73, an unauthenticated remote attacker can bypass all authentication in AdGuardHome by sending an HTTP/1.1 request that requests an upgrade to HTTP/2 cleartext (h2c). Once the upgrade is accepted, the resulting HTTP/2 connection is handled by the inner mux, which has no authentication middleware attached. All subsequent HTTP/2 requests on that connection are processed as fully authenticated, regardless of whether any credentials were provided. This vulnerability is fixed in 0.107.73.
- Product
- AdGuardHome
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 8, 2024An arbitrary file read vulnerability in Adguard Home before v0.107.52 allows authenticated attackers to access arbitrary files as root on the underlying OperatiCVE-2024-36814 · Other software · adguard · reported by MITREMedium 4.9
An arbitrary file read vulnerability in Adguard Home before v0.107.52 allows authenticated attackers to access arbitrary files as root on the underlying Operating System via placing a crafted file into a readable directory.
- Product
- adguard_home
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 3, 2021An issue was discovered in AdGuard before 0.105.2.CVE-2021-27935 · Other software · Adguard · reported by MITREHigh 7.5
An issue was discovered in AdGuard before 0.105.2. An attacker able to get the user's cookie is able to bruteforce their password offline, because the hash of the password is stored in the cookie.
- Product
- Adguard Home
- 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.
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