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

  • Jul 4, 2026Crypt::DSA versions before 1.22 for Perl draw the DSA signing nonce and private key from a biased random generator, leading to private-key recovery.CVE-2026-14570 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 7.5

    Crypt::DSA versions before 1.22 for Perl draw the DSA signing nonce and private key from a biased random generator, leading to private-key recovery. "Crypt::DSA::Util::makerandom forces the high bit of every value it returns to obtain an exactly N-bit integer for prime search. The signing nonce and the private key are drawn from makerandom. Because the high bit is always set, the result is not uniform: its top bit is fixed, producing insecure values." An attacker who collects a modest number of signatures under an affected key, together with the public key, can recover the private key with a lattice attack. Keys used to sign with an affected version should be considered compromised and new keys should be generated.

    Product
    Crypt::DSA
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 15, 2026Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery.CVE-2026-12205 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eCritical 9.1

    Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery. Crypt::DSA::sign caches the per-signature nonce material in the Key object without ever clearing it. The first sign() on a Key object picks a nonce, and every later sign() on that same object reuses it, producing an identical "r". Keys used to sign more than once with an affected version should be considered compromised.

    Product
    Crypt::DSA
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 15, 2026Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.CVE-2026-8704 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eMedium 6.5

    Crypt::DSA versions through 1.19 for Perl use 2-args open, allowing existing files to be modified.

    Product
    Crypt::DSA
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 15, 2026Crypt::DSA versions before 1.20 for Perl generate seeds using rand.CVE-2026-8700 · Other software · TIMLEGGE · reported by 9b29abf9-4ab0-4765-b253-1875cd9b441eHigh 7.3

    Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

    Product
    Crypt::DSA
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2011The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it easier for remote attaCVE-2011-3599 · Other software · Adam Kennedy · reported by Red HatMedium 5.8

    The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it easier for remote attackers to spoof a signature, or determine the signing key of a signed message, via a brute-force attack.

    Product
    Crypt-dsa
    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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