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 1 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
36added in the last 30 days
479new WordPress flaws this week
390,525entries in the database

5 results

  • Oct 2, 2026Zebra zebrad 4.5.0 and zebra-script 7.0.0 count P2SH redeem script signature operations in legacy mode rather than zcashd's accurate P2SH mode, overcounting CHECVE-2026-104430 · Other software · ZcashFoundation · reported by VulnCheckHigh 8.7

    Zebra zebrad 4.5.0 and zebra-script 7.0.0 count P2SH redeem script signature operations in legacy mode rather than zcashd's accurate P2SH mode, overcounting CHECKMULTISIG preceded by OP_1 through OP_16 as 20 sigops and causing a consensus divergence. Remote attackers can broadcast P2SH spends using low-threshold multisig redeem scripts so that a block zcashd accepts exceeds Zebra's inflated MAX_BLOCK_SIGOPS count, causing Zebra nodes to reject it and stall off the chain.

    Product
    zebra
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 5, 2026Zcash zcashd before 6.12.0 allows invalid transactions to be accepted under certain conditions, which potentially could have resulted in the draining of user fuCVE-2026-35679 · Other software · Zcash · reported by MITRELow 3.5

    Zcash zcashd before 6.12.0 allows invalid transactions to be accepted under certain conditions, which potentially could have resulted in the draining of user funds from the Sprout pool. It was sometimes not verifying Sprout proofs.

    Product
    zcashd
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 5, 2021In Electric Coin Company Zcashd before 2.1.1-1, the time offset between messages could be leveraged to obtain sensitive information about the relationship betweCVE-2020-8807 · Other software · Electriccoin · reported by MITREMedium 5.3

    In Electric Coin Company Zcashd before 2.1.1-1, the time offset between messages could be leveraged to obtain sensitive information about the relationship between a suspected victim's address and an IP address, aka a timing side channel.

    Product
    Zcashd
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 5, 2021Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending.CVE-2020-8806 · Other software · Electriccoin · reported by MITREHigh 7.5

    Electric Coin Company Zcashd before 2.1.1-1 allows attackers to trigger consensus failure and double spending. A valid chain could be incorrectly rejected because timestamp requirements on block headers were not properly enforced.

    Product
    Zcashd
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 28, 2019Zcashd in Zcash before 2.0.7-3 allows discovery of the IP address of a full node that owns a shielded address, related to mishandling of exceptions during deserCVE-2019-16930 · Other software · Z.cash · reported by MITREMedium 5.3

    Zcashd in Zcash before 2.0.7-3 allows discovery of the IP address of a full node that owns a shielded address, related to mishandling of exceptions during deserialization of note plaintexts. This affects anyone who has disclosed their zaddr to a third party.

    Product
    Zcash
    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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