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 3 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

12 results

  • Oct 16, 2026Gwolle Guestbook: Reflected Cross-Site ScriptingCVE-2026-103481 · WordPress plugins & themes · reported by WordfenceMedium 6.1

    The Gwolle Guestbook plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'permalink' parameter in all versions up to, and including, 5.1.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

    Product
    Gwolle Guestbook
    Affected
    up to 5.1.1
    What to do
    Affects up to 5.1.1. Update Gwolle Guestbook to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jul 9, 2025Gwolle Guestbook: Stored Cross-Site ScriptingCVE-2025-5807 · WordPress plugins & themes · reported by WordfenceMedium 6.1

    The Gwolle Guestbook plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘gwolle_gb_content’ parameter in all versions up to, and including, 4.9.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

    Product
    Gwolle Guestbook
    Affected
    up to 4.9.2
    What to do
    Affects up to 4.9.2. Update Gwolle Guestbook to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Mar 26, 2025Rizzi Guestbook: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-26573 · WordPress plugins & themes · reported by PatchstackHigh 7.1

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JamRizzi Technologies Rizzi Guestbook rizzi-guestbook allows Reflected XSS.This issue affects Rizzi Guestbook: from n/a through <= 4.0.1.

    Product
    Rizzi Guestbook
    Affected
    up to 4.0.1
    What to do
    Affects up to 4.0.1. Update Rizzi Guestbook to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Jan 31, 2025Gwolle Guestbook: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2025-24710 · WordPress plugins & themes · reported by PatchstackHigh 7.1

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcel Pol Gwolle Guestbook gwolle-gb allows Reflected XSS.This issue affects Gwolle Guestbook: from n/a through <= 4.7.1.

    Product
    Gwolle Guestbook
    Affected
    up to 4.7.1
    What to do
    Affects up to 4.7.1. Update Gwolle Guestbook to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Sep 30, 2022Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Comment Guestbook plugin <= 0.8.0 at WordPress.CVE-2021-36830 · WordPress plugins & themes · reported by PatchstackMedium 4.8

    Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Comment Guestbook plugin <= 0.8.0 at WordPress.

    Affected
    up to 0.8.0
    What to do
    Affects up to 0.8.0. 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.
  • Dec 27, 2021Gwolle Guestbook: Does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attributeCVE-2021-24980 · WordPress plugins & themes · reported by WPScanMedium 6.1

    The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page

    Product
    Gwolle Guestbook
    Fixed in
    4.2.0
    What to do
    Update Gwolle Guestbook to 4.2.0 or newer.
  • Oct 2, 2018XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) plugin before 2.5.4 for WordPress via the PATH_INFO to wp-admin/index.phpCVE-2018-17884 · WordPress plugins & themes · reported by MITREMedium 6.1

    XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) plugin before 2.5.4 for WordPress via the PATH_INFO to wp-admin/index.php

    Product
    XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb)
    Fixed in
    2.5.4
    What to do
    Update XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) to 2.5.4 or newer.
  • Sep 11, 2017PHP remote file inclusion vulnerability in the Gwolle Guestbook plugin before 1.5.4 for WordPress, when allow_url_include is enabled, allows remote authenticateCVE-2015-8351 · WordPress plugins & themes · reported by MITRECritical 9

    PHP remote file inclusion vulnerability in the Gwolle Guestbook plugin before 1.5.4 for WordPress, when allow_url_include is enabled, allows remote authenticated users to execute arbitrary PHP code via a URL in the abspath parameter to frontend/captcha/ajaxresponse.php. NOTE: this can also be leveraged to include and execute arbitrary local files via directory traversal sequences regardless of whether allow_url_include is enabled.

    Product
    PHP remote file inclusion vulnerability in the Gwolle Guestbook
    Fixed in
    1.5.4
    What to do
    Update PHP remote file inclusion vulnerability in the Gwolle Guestbook to 1.5.4 or newer.
  • Feb 6, 2008the administration panel in the DMSGuestbook 1.7.0 plugin for: SQL injectionCVE-2008-0616 · WordPress plugins & themes · reported by MITREMedium 6.5

    SQL injection vulnerability in the administration panel in the DMSGuestbook 1.7.0 plugin for WordPress allows remote authenticated administrators to execute arbitrary SQL commands via unspecified vectors. NOTE: it is not clear whether this issue crosses privilege boundaries.

    Product
    the administration panel in the DMSGuestbook 1.7.0 plugin for
    Affected
    1.7.0 to 1.7.0
    What to do
    Affects 1.7.0 to 1.7.0. Update the administration panel in the DMSGuestbook 1.7.0 plugin for to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
  • Feb 6, 2008Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTMLCVE-2008-0617 · WordPress plugins & themes · reported by MITREMedium 4.3

    Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) file parameter to wp-admin/admin.php, or the (2) messagefield parameter in the guestbook page, and the (3) title parameter in the messagearea.

    Affected
    1.7.0 to 1.7.0
    What to do
    Affects 1.7.0 to 1.7.0. 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.
  • Feb 6, 2008Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web scriCVE-2008-0618 · WordPress plugins & themes · reported by MITREMedium 4.3

    Multiple cross-site scripting (XSS) vulnerabilities in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) gbname, (2) gbemail, (3) gburl, and (4) gbmsg parameters to unspecified programs. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

    What to do
    Update the plugin to the newest version.
  • Feb 6, 2008wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for: Directory traversalCVE-2008-0615 · WordPress plugins & themes · reported by MITREMedium 4

    Directory traversal vulnerability in wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for WordPress allows remote authenticated users to read arbitrary files via a .. (dot dot) in the (1) folder and (2) file parameters.

    Product
    wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for
    What to do
    Update wp-admin/admin.php in the DMSGuestbook 1.8.0 and 1.7.0 plugin for to the newest version.

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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.