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 11 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
456new WordPress flaws this week
390,714entries in the database

3 results

  • Jun 17, 2026Unauthenticated PHP Object Injection in Nifty <= 1.4.1 versions.CVE-2026-27429 · WordPress plugins & themes · reported by PatchstackCritical 9.8

    Unauthenticated PHP Object Injection in Nifty <= 1.4.1 versions.

    Affected
    up to 1.4.1
    What to do
    Affects up to 1.4.1. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Oct 22, 2025Nifty Backups: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-52763 · WordPress plugins & themes · reported by PatchstackHigh 7.1

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NickDuncan Nifty Backups nifty-backups allows Reflected XSS.This issue affects Nifty Backups: from n/a through <= 1.08.

    Product
    Nifty Backups
    Affected
    up to 1.08
    What to do
    Affects up to 1.08. Update Nifty Backups to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Aug 5, 2021Nifty Newsletters: Cross-Site Request ForgeryCVE-2021-34634 · WordPress plugins & themes · reported by WordfenceHigh 8.8

    The Nifty Newsletters WordPress plugin is vulnerable to Cross-Site Request Forgery via the sola_nl_wp_head function found in the ~/sola-newsletters.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 4.0.23.

    Product
    Nifty Newsletters
    Affected
    up to 4.0.23
    What to do
    Affects up to 4.0.23. Update Nifty Newsletters to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.

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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