CVE-2026-43939

Summary: CVE-2026-43939 affects YetAnotherForum.NET (YAF.NET) prior to 4.0.5 and 3.2.12, where thread posting/reply content is stored and later rendered without proper HTML sanitization or contextual encoding, enabling Stored XSS across the forum. The underlying issue is unsanitized user input in...

CVE-2026-43939 YAF.NET: Stored XSS in Forum Thread Posts/Replies Allowing Arbitrary JavaScript Execution for All Thread Viewers

YetAnotherForum.NET YAF.NET is a C ASP.NET forum. Prior to 4.0.5 and 3.2.12, the thread posting and reply feature accepts user-supplied content via a a post or reply that is stored server-side and later rendered back into the thread page without adequate HTML sanitization or contextual output...

EUVD-2021-34789

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers can submit POST requests to the admin setup page with...

CVE-2021-47927 WordPress Plugin WP Symposium Pro 2021.10 Stored XSS via wps_admin_forum_add_name

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers can submit POST requests to the admin setup page with...

CVE-2021-47927

CVE-2021-47927 affects the WordPress plugin WP Symposium Pro (version 2021.10). It describes a stored cross-site scripting (XSS) vulnerability in the wps_admin_forum_add_name parameter used during admin setup: authenticated attackers can submit a JavaScript payload via POST, which is stored and e...

CVE-2021-47927

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers can submit POST requests to the admin setup page with...

CVE-2021-47927 WordPress Plugin WP Symposium Pro 2021.10 Stored XSS via wps_admin_forum_add_name

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers can submit POST requests to the admin setup page with...

WordPress plugin WP Symposium Pro 跨站脚本漏洞

WordPress and WordPress plugins are both products of the WordPress Foundation. WordPress is a blog platform developed using the PHP language. This platform allows for the creation of personal blog websites on servers based on PHP and MySQL. A WordPress plugin is an application extension. The...

PT-2026-39503

WordPress Plugin WP Symposium Pro 2021.10 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by exploiting insufficient sanitization of the forum name parameter. Attackers can submit POST requests to the admin setup page with...

CVE-2026-41887

Flarum is open-source forum software. Prior to versions 1.8.16 and 2.0.0-rc.1, Flarum's patch for CVE-2023-27577 restricted the @import and data-uri LESS features in the customless setting, but the same restriction was never applied to other settings registered as LESS config variables for exampl...

EUVD-2026-28804

Flarum is open-source forum software. Prior to versions 1.8.16 and 2.0.0-rc.1, Flarum's patch for CVE-2023-27577 restricted the @import and data-uri LESS features in the customless setting, but the same restriction was never applied to other settings registered as LESS config variables for exampl...

WordPress wpForo Forum plugin <= 3.0.4 - SQL Injection vulnerability

SQL Injection vulnerability discovered by Nguyen Ba Khanh in WordPress Plugin wpForo Forum versions = 3.0.4...

Hackers Hate AI Slop Even More Than You Do

It's not just you. Scammers, hackers, and other cybercriminals are complaining about “AI shit” flooding platforms where they discuss cyberattacks and other illegal activity...

xss-lab

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YAFNET has Stored XSS in Forum Thread Posts/Replies that Allows Arbitrary JavaScript Execution for All Thread Viewers

Description: Stored Cross-Site Scripting XSS occurs when user-supplied input is persisted by the application and later rendered in another user's browser without proper sanitization or contextual output encoding. When the vulnerable sink is a high-traffic surface such as a public forum thread, th...

GHSA-8RQ5-WWPP-FMJ2 YAFNET has Stored XSS in Forum Thread Posts/Replies that Allows Arbitrary JavaScript Execution for All Thread Viewers

Description: Stored Cross-Site Scripting XSS occurs when user-supplied input is persisted by the application and later rendered in another user's browser without proper sanitization or contextual output encoding. When the vulnerable sink is a high-traffic surface such as a public forum thread, th...

Cross-site Scripting (XSS)

Overview YAFNET.Core is an Open Source Forum solution! The YAF.NET project is an international collaboration of like-minded, skilled, and creative individuals who are striving to make YAF.NET the most robust and malleable forum solutions available. Affected versions of this package are vulnerable...

PT-2026-37310

Name of the Vulnerable Software and Affected Versions YetAnotherForum.NET YAF.NET versions prior to 4.0.5 YetAnotherForum.NET YAF.NET versions prior to 3.2.12 Description The thread posting and reply feature allows user-supplied content to be stored server-side and rendered on the thread page...

CVE-2018-25309

CVE-2018-25309 affects MyBB 17.0 Recent Threads. It is a persistent XSS in the thread subject that lets attackers inject scripts to execute in the browsers of users viewing the index page. The root cause is crafted subject lines containing script tags, enabling arbitrary JavaScript execution in a...

CVE-2026-40229 Helpy 2.8.0 - Stored XSS in post author display via PostsHelper

Helpy contains a stored cross-site scripting vulnerability in the post author display logic. Any registered user can persist arbitrary HTML in their account name field and cause it to be rendered unescaped in public forum threads where they participate, in the admin ticket view, and in HTML...