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.
14 results
Sep 30, 2026External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.CVE-2026-103442 · Other software · The Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccHigh 7.2
External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection. This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.
- Product
- MediaWiki CentralAuth extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Sep 29, 2026Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth extensionCVE-2026-103047 · Other software · The Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccMedium 6.1
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth extension allows Stored XSS. This issue affects Mediawiki - CentralAuth extension: before 1.46.1, 1.45.5, 1.43.10.
- Product
- Mediawiki - CentralAuth extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Sep 29, 2026Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows Excavation.CVE-2026-100244 · Other software · Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccHigh 7.5
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows Excavation. This issue affects Mediawiki - CentralAuth Extension: from * before 1.46.1, 1.45.5, 1.43.10.
- Product
- Mediawiki - CentralAuth Extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Apr 7, 2026Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows ResourceCVE-2026-39937 · Other software · The Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccHigh 8.8
Improper removal of sensitive information before storage or transfer vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure. The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.
- Product
- Mediawiki - CentralAuth Extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Oct 18, 2025Exposure of Sensitive Information to an Unauthorized Actor vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak ExpoCVE-2025-62669 · Other software · The Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccMedium 6.9
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth Extension allows Resource Leak Exposure.This issue affects Mediawiki - CentralAuth Extension: from master before 1.39.
- Product
- Mediawiki - CentralAuth Extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Jul 3, 2025Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CeCVE-2025-6926 · Other software · Wikimedia Foundation · reported by c4f26cc8-17ff-4c99-b5e2-38fc1793eaccHigh 8.8
Improper Authentication vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows : Bypass Authentication.This issue affects Mediawiki - CentralAuth Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.
- Product
- Mediawiki - CentralAuth Extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Jul 2, 2021An issue was discovered in the CentralAuth extension in MediaWiki through 1.36.CVE-2021-36128 · Other software · Mediawiki · reported by MITRECritical 9.8
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. Autoblocks for CentralAuth-issued suppression blocks are not properly implemented.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orggerrit.wikimedia.org
Jul 2, 2021An issue was discovered in the CentralAuth extension in MediaWiki through 1.36.CVE-2021-36127 · Other software · Mediawiki · reported by MITREMedium 4.3
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalUserRights page provided search results which, for a suppressed MediaWiki user, were different than for any other user, thus easily disclosing suppressed accounts (which are supposed to be completely hidden).
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Jul 2, 2021An issue was discovered in the CentralAuth extension in MediaWiki through 1.36.CVE-2021-36125 · Other software · Mediawiki · reported by MITREHigh 7.5
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalRenameRequest page is vulnerable to infinite loops and denial of service attacks when a user's current username is beyond an arbitrary maximum configuration value (MaxNameChars).
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Apr 21, 2020The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=CVE-2020-12051 · Other software · Mediawiki · reported by MITREHigh 7.5
The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=globaluserinfo&guiuser= request. In other words, the information can be retrieved via the action API even though access would be denied when simply visiting wiki/Special:CentralAuth in a web browser.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgerrit.wikimedia.orgphabricator.wikimedia.org
Jan 28, 2020The CentralAuth extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to obtain usernames via vectors relCVE-2013-6455 · Other software · Wikimedia Foundation · reported by Red HatMedium 5.3
The CentralAuth extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 allows remote attackers to obtain usernames via vectors related to writing the names to the DOM of a page.
- Product
- MediaWiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.wikimedia.orglists.wikimedia.org
Jun 2, 2014Session fixation vulnerability in the CentralAuth extension for MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers CVE-2012-5395 · Other software · Mediawiki · reported by MITREMedium 6.8
Session fixation vulnerability in the CentralAuth extension for MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers to hijack web sessions via the centralauth_Session cookie.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.wikimedia.orgbugzilla.wikimedia.org
Jan 26, 2014The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centraCVE-2013-4304 · Other software · Brion Vibber · reported by Red HatHigh 7.5
The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.
- Product
- Centralauth Extension
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.wikimedia.orgosvdb.org
Dec 13, 2013Cross-site request forgery (CSRF) vulnerability in the CentralAuth extension for MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows CVE-2012-5394 · Other software · Mediawiki · reported by MITREMedium 6.8
Cross-site request forgery (CSRF) vulnerability in the CentralAuth extension for MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to hijack the authentication of users for requests that login via vectors involving image loading.
- Product
- Mediawiki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
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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