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 9 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.

1,764exploited flaws on CISA’s list
35added in the last 30 days
457new WordPress flaws this week
390,525entries in the database

8 results

  • Aug 19, 2026nnn does not sanitize the filename variable.CVE-2026-65612 · Other software · nnn · reported by cvd@cert.plMedium 5.1

    nnn does not sanitize the filename variable. An attacker can place a file with a crafted name on a shared filesystem, removable media, or inside an extracted archive whose name contains a single quote followed by shell syntax. If the victim navigates to that file and opens it with preview-tabbed, the filename is embedded into the generated shell command and the injected payload executes with the privileges of the nnn process. Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.

    Product
    nnn
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 19, 2026nnn does not sanitize the path variable.CVE-2026-65611 · Other software · nnn · reported by cvd@cert.plMedium 5.1

    nnn does not sanitize the path variable. An attacker can create a directory on a shared filesystem, removable media, or inside an extracted archive whose name contains a single quote followed by shell syntax. If the victim enters that directory in nnn and uses the batch copy or move workflow, the crafted directory name is embedded into the generated shell command and the injected payload executes with the privileges of the nnn process. Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.

    Product
    nnn
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 19, 2026nnn stores homelen variable as uchar_t, which can only represent values in the range 0-255.CVE-2026-65610 · Other software · nnn · reported by cvd@cert.plLow 2.4

    nnn stores homelen variable as uchar_t, which can only represent values in the range 0-255. An attacker who can influence the victim's execution environment can provide an arbitrary HOME path with length that is truncated to 0. The expression (homelen - 1) is promoted to signed int and becomes -1 and producing an out-of-bounds read and an out-of-bounds write one byte before the path buffer.  Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.

    Product
    nnn
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 19, 2026nnn is vulnerable to Out-of-Bound write vulnerability.CVE-2026-65609 · Other software · nnn · reported by cvd@cert.plLow 2.4

    nnn is vulnerable to Out-of-Bound write vulnerability. Due to lack of validation of attacker-controlled length fields deserialized from a session file, a crafted session file can cause nnn to write data beyond the bounds of fixed-size global buffers when loaded with the -s option. An attacker who can place a malicious session file in the victim's nnn session directory can exploit this to corrupt adjacent global state. Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.

    Product
    nnn
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 17, 2026next-intl provides internationalization for Next.js.CVE-2026-40299 · Other software · amannn · reported by GitHubMedium 6.9

    next-intl provides internationalization for Next.js. Applications using the `next-intl` middleware prior to version 4.9.1with `localePrefix: 'as-needed'` could construct URLs where path handling and the WHATWG URL parser resolved a relative redirect target to another host (e.g. scheme-relative `//` or control characters stripped by the URL parser), so the middleware could redirect the browser off-site while the user still started from a trusted app URL. The problem has been patchedin `next-intl@4.9.1`.

    Product
    next-intl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 23, 2025A security vulnerability has been detected in jarun nnn up to 5.1.CVE-2025-13566 · Other software · jarun · reported by VulDBMedium 4.8

    A security vulnerability has been detected in jarun nnn up to 5.1. The impacted element is the function show_content_in_floating_window/run_cmd_as_plugin of the file nnn/src/nnn.c. The manipulation leads to double free. An attack has to be approached locally. The identifier of the patch is 2f07ccdf21e705377862e5f9dfa31e1694979ac7. It is suggested to install a patch to address this issue.

    Product
    nnn
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 9, 2023Cross Site Scripting vulnerability found in Chamilo Lms v.1.11.18 allows a local attacker to execute arbitrary code via the system annnouncements parameter.CVE-2023-31799 · Other software · Chamilo · reported by MITREMedium 4.8

    Cross Site Scripting vulnerability found in Chamilo Lms v.1.11.18 allows a local attacker to execute arbitrary code via the system annnouncements parameter.

    Product
    Chamilo LMS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 6, 2021Kennnyshiwa-cogs contains cogs for Red Discordbot.CVE-2021-29493 · Other software · kennnyshiwa · reported by GitHubMedium 6.5

    Kennnyshiwa-cogs contains cogs for Red Discordbot. An RCE exploit has been found in the Tickets module of kennnyshiwa-cogs. This exploit allows discord users to craft a message that can reveal sensitive and harmful information. Users can upgrade to version 5a84d60018468e5c0346f7ee74b2b4650a6dade7 to receive a patch or, as a workaround, unload tickets to render the exploit unusable.

    Product
    kennnyshiwa-cogs
    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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