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 8 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
343new WordPress flaws this week
390,080entries in the database

9 results

  • May 12, 2026Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent.CVE-2026-44184 · Other software · Cleanuparr · reported by GitHubHigh 8

    Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. Prior to 2.9.10, Cleanuparr's global CORS policy reflects every request Origin and combines it with AllowCredentials(). When DisableAuthForLocalAddresses is enabled, the API also authenticates requests purely by source IP via TrustedNetworkAuthenticationHandler. The combination lets any website that an admin (or any user on a trusted IP) visits read authenticated API responses cross-origin — including the admin's permanent API key. This vulnerability is fixed in 2.9.10.

    Product
    Cleanuparr
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 12, 2026Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent.CVE-2026-44183 · Other software · Cleanuparr · reported by GitHubCritical 9.8

    Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. Prior to 2.9.10, TrustedNetworkAuthenticationHandler.ResolveClientIp parses the leftmost entry of the X-Forwarded-For header as the client IP. That entry is attacker-controlled — X-Forwarded-For is append-only, so the leftmost value is whatever the original HTTP client claimed. By sending a spoofed local IP in the header, an unauthenticated remote attacker passes the trusted-network check and is logged in as the Cleanuparr administrator. This vulnerability is fixed in 2.9.10.

    Product
    Cleanuparr
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 25, 2026Sonarr is a PVR for Usenet and BitTorrent users.CVE-2026-30976 · Other software · Sonarr · reported by GitHubHigh 8.6

    Sonarr is a PVR for Usenet and BitTorrent users. In versions on the 4.x branch prior to 4.0.17.2950, an unauthenticated remote attacker can potentially read any file readable by the Sonarr process. These include application configuration files (containing API keys and database credentials), Windows system files, and any user-accessible files on the same drive This issue only impacts Windows systems; macOS and Linux are unaffected. Files returned from the API were not limited to the directory on disk they were intended to be served from. This problem has been patched in 4.0.17.2950 in the nightly/develop branch or 4.0.17.2952 for stable/main releases. It's possible to work around the issue by only hosting Sonarr on a secure internal network and accessing it via VPN, Tailscale or similar solution outside that network.

    Product
    Sonarr
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 25, 2026Sonarr is a PVR for Usenet and BitTorrent users.CVE-2026-30975 · Other software · Sonarr · reported by GitHubHigh 8.1

    Sonarr is a PVR for Usenet and BitTorrent users. Versions prior to 4.0.16.2942 have an authentication bypass that affected users that had disabled authentication for local addresses (Authentication Required set to: `Disabled for Local Addresses`) without a reverse proxy running in front of Sonarr that didn't not pass through the invalid header. Patches are available in version 4.0.16.2942 in the nightly/develop branch and version 4.0.16.2944 for stable/main releases. Some workarounds are available. Make sure Sonarr's Authentication Required setting is set to `Enabled`, run Sonarr behind a reverse proxy, and/or do not expose Sonarr directly to the internet and instead rely on accessing it through a VPN, Tailscale or a similar solution.

    Product
    Sonarr
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 16, 2026Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent.CVE-2026-32702 · Other software · Cleanuparr · reported by GitHubMedium 6.9

    Cleanuparr is a tool for automating the cleanup of unwanted or blocked files in Sonarr, Radarr, and supported download clients like qBittorrent. From 2.7.0 to 2.8.0, the /api/auth/login endpoint contains a logic flaw that allows unauthenticated remote attackers to enumerate valid usernames by measuring the application's response time. It appears that the hashing function, which is the most time-consuming part of the process by design, occurs as part of the VerifyPassword function. With the short circuits occurring before the hashing function, a timing differential is introduced that exposes validity to the actor. This vulnerability is fixed in 2.8.1.

    Product
    Cleanuparr
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2025A vulnerability was found in Sonarr 4.0.15.2940.CVE-2025-13131 · Other software · reported by VulDBHigh 8.5

    A vulnerability was found in Sonarr 4.0.15.2940. The impacted element is an unknown function of the file C:\ProgramData\Sonarr\bin\Sonarr.Console.exe of the component Service. Performing manipulation results in incorrect default permissions. The attack is only possible with local access. The vendor confirms this vulnerability but classifies it as a "low severity issue due to the default service user being used as it would either require someone to intentionally change the service to a highly privileged account or an attacker would need an admin level account". It is planned to fix this issue in the next major release v5.

    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 6, 2024Sonarr – CWE-601: URL Redirection to Untrusted Site ('Open Redirect')CVE-2024-45247 · Other software · Sonarr · reported by cna@cyber.gov.ilMedium 6.1

    Sonarr – CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

    Product
    Sonarr
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 8, 2023hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonArray.CVE-2023-42276 · Other software · Hutool · reported by MITRECritical 9.8

    hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonArray.

    Product
    Hutool
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 22, 2023An infinite recursion is triggered in Jettison when constructing a JSONArray from a Collection that contains a self-reference in one of its elements.CVE-2023-1436 · Other software · jettison · reported by reefs@jfrog.comMedium 5.9

    An infinite recursion is triggered in Jettison when constructing a JSONArray from a Collection that contains a self-reference in one of its elements. This leads to a StackOverflowError exception being thrown.

    Product
    jettison
    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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