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Showing 41-60 of 179 records
Threat Entry Updated 2026-06-17

WordPress Core - Security Vulnerability (CVE-2023-22622)

WordPress through 6.1.1 depends on unpredictable client visits to cause wp-cron.php execution and the resulting security updates, and the source code describes "the scenario where a site may not receive enough visits to execute scheduled tasks in a timely manner," but neither the installation guide nor the security guide mentions this default behavior, or alerts the user about security risks on installations with very few visits.

CORE WordPress Core

CVE-2023-22622

MEDIUM CVSS 5.3 2023-01-05
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Cross-Site Scripting (XSS) (CVE-2022-21662)

WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database. Low-privileged authenticated users (like author) in WordPress core are able to execute JavaScript/perform stored XSS attack, which can affect high-privileged users. This has been patched in WordPress version 5.8.3. Older affected versions are also fixed via security release, that go back till 3.7.37. We strongly recommend that you keep auto-updates enabled. There are no known workarounds for this issue.

CORE WordPress Core

CVE-2022-21662

HIGH CVSS 8.0 2022-01-06
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Security Vulnerability (CVE-2022-21664)

WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database. Due to lack of proper sanitization in one of the classes, there's potential for unintended SQL queries to be executed. This has been patched in WordPress version 5.8.3. Older affected versions are also fixed via security release, that go back till 4.1.34. We strongly recommend that you keep auto-updates enabled. There are no known workarounds for this issue.

CORE WordPress Core

CVE-2022-21664

HIGH CVSS 7.4 2022-01-06
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - PHP Object Injection (CVE-2022-21663)

WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database. On a multisite, users with Super Admin role can bypass explicit/additional hardening under certain conditions through object injection. This has been patched in WordPress version 5.8.3. Older affected versions are also fixed via security release, that go back till 3.7.37. We strongly recommend that you keep auto-updates enabled. There are no known workarounds for this issue.

CORE WordPress Core

CVE-2022-21663

MEDIUM CVSS 6.6 2022-01-06
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Security Vulnerability (CVE-2021-44223)

WordPress before 5.8 lacks support for the Update URI plugin header. This makes it easier for remote attackers to execute arbitrary code via a supply-chain attack against WordPress installations that use any plugin for which the slug satisfies the naming constraints of the WordPress.org Plugin Directory but is not yet present in that directory.

CORE WordPress Core

CVE-2021-44223

HIGH CVSS 8.1 2021-11-25
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Cross-Site Scripting (XSS) (CVE-2021-39202)

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.

CORE WordPress Core

CVE-2021-39202

HIGH CVSS 7.6 2021-09-09
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Cross-Site Scripting (XSS) (CVE-2021-39201)

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/…

CORE WordPress Core

CVE-2021-39201

HIGH CVSS 7.6 2021-09-09
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Security Vulnerability (CVE-2021-39203)

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.

CORE WordPress Core

CVE-2021-39203

MEDIUM CVSS 6.8 2021-09-09
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Security Vulnerability (CVE-2021-39200)

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions output data of the function wp_die() can be leaked under certain conditions, which can include data like nonces. It can then be used to perform actions on your behalf. This has been patched in WordPress 5.8.1, along with any older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.

CORE WordPress Core

CVE-2021-39200

MEDIUM CVSS 5.3 2021-09-09
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Security Vulnerability (CVE-2021-29450)

Wordpress is an open source CMS. One of the blocks in the WordPress editor can be exploited in a way that exposes password-protected posts and pages. This requires at least contributor privileges. This has been patched in WordPress 5.7.1, along with the older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.

CORE WordPress Core

CVE-2021-29450

MEDIUM CVSS 6.5 2021-04-15
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - XML External Entity (XXE) (CVE-2021-29447)

Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.

CORE WordPress Core

CVE-2021-29447

HIGH CVSS 7.1 2021-04-15
Open Full Technical Breakdown
Threat Entry Updated 2026-06-17

WordPress Core - Remote Code Execution (CVE-2020-28037)

is_blog_installed in wp-includes/functions.php in WordPress before 5.5.2 improperly determines whether WordPress is already installed, which might allow an attacker to perform a new installation, leading to remote code execution (as well as a denial of service for the old installation).

CORE WordPress Core

CVE-2020-28037

CRITICAL CVSS 9.8 2020-11-02
Open Full Technical Breakdown

WordPress security that blocks attacks before they land.

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