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 4 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
344new WordPress flaws this week
390,080entries in the database

5 results

  • May 22, 2026For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.CVE-2026-46598 · Other software · golang.org/x/crypto · reported by security@golang.orgMedium 5.3

    For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.

    Product
    golang.org/x/crypto/ssh/agent
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 22, 2026The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it.CVE-2026-39833 · Other software · golang.org/x/crypto · reported by security@golang.orgCritical 9.1

    The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested.

    Product
    golang.org/x/crypto/ssh/agent
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 22, 2026When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request.CVE-2026-39832 · Other software · golang.org/x/crypto · reported by security@golang.orgCritical 9.1

    When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.

    Product
    golang.org/x/crypto/ssh/agent
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 19, 2025SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed dCVE-2025-47914 · Other software · golang.org/x/crypto · reported by security@golang.orgMedium 5.3

    SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.

    Product
    golang.org/x/crypto/ssh/agent
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2025SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.CVE-2025-47913 · Other software · golang.org/x/crypto · reported by security@golang.orgHigh 7.5

    SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.

    Product
    golang.org/x/crypto/ssh/agent
    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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