EUVD-2026-9038

CleverTap Web SDK version 1.15.2 and earlier is vulnerable to Cross-Site Scripting XSS via window.postMessage. The handleCustomHtmlPreviewPostMessageEvent function in src/util/campaignRender/nativeDisplay.js performs insufficient origin validation using the includes method, which can be bypassed ...

GHSA-J5MF-6RH3-RHGG CleverTap Web SDK is vulnerable to DOM-based XSS via handleCustomHtmlPreviewPostMessageEvent function

CleverTap Web SDK version 1.15.2 and earlier is vulnerable to Cross-site Scripting XSS via window.postMessage. The handleCustomHtmlPreviewPostMessageEvent function in src/util/campaignRender/nativeDisplay.js performs insufficient origin validation using the includes method, which can be bypassed ...

CleverTap Web SDK is vulnerable to DOM-based XSS via handleCustomHtmlPreviewPostMessageEvent function

CleverTap Web SDK version 1.15.2 and earlier is vulnerable to Cross-site Scripting XSS via window.postMessage. The handleCustomHtmlPreviewPostMessageEvent function in src/util/campaignRender/nativeDisplay.js performs insufficient origin validation using the includes method, which can be bypassed ...

CVE-2026-26862

CleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting XSS via window.postMessage in the Visual Builder module. The origin validation in src/modules/visualBuilder/pageBuilder.js lines 56-60 uses the includes method to verify the originUrl contains...

CVE-2026-26862

CVE-2026-26862 affects CleverTap Web SDK

PT-2026-22366

Name of the Vulnerable Software and Affected Versions CleverTap Web SDK versions 1.15.2 and earlier Description The CleverTap Web SDK is susceptible to a Cross-Site Scripting XSS issue through the window.postMessage functionality. The handleCustomHtmlPreviewPostMessageEvent function, located in...

PT-2026-22368

Name of the Vulnerable Software and Affected Versions CleverTap Web SDK versions 1.15.2 and earlier Description The CleverTap Web SDK is susceptible to a DOM-based Cross-Site Scripting XSS issue. This occurs due to insufficient origin validation within the Visual Builder module, specifically in t...

CVE-2026-2345 Insufficient Origin Validation in Proctorio Chrome Extension postMessage Handlers

Proctorio Chrome Extension is a browser extension used for online proctoring. The extension contains multiple window.addEventListener'message', ... handlers that do not properly validate the origin of incoming messages. Specifically, an internal messaging bridge processes messages based solely on...

CVE-2026-2345 Insufficient Origin Validation in Proctorio Chrome Extension postMessage Handlers

Proctorio Chrome Extension is a browser extension used for online proctoring. The extension contains multiple window.addEventListener'message', ... handlers that do not properly validate the origin of incoming messages. Specifically, an internal messaging bridge processes messages based solely on...

CVE-2026-25892

Adminer is open-source database management software. Adminer v5.4.1 and earlier has a version check mechanism where adminer.org sends signed version info via JavaScript postMessage, which the browser then POSTs to ?script=version. This endpoint lacks origin validation and accepts POST data from a...

CVE-2021-41038

In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage...

hacker-man

Hacker Man - Vulnerable Web Applications Lab A collection of...

CVE-2025-66500

CVE-2025-66500 describes a stored XSS in Foxit’s webplugins.foxit.com where a postMessage handler fails to validate the message origin and directly assigns externalPath to a script source, enabling arbitrary JavaScript execution when a crafted postMessage is received. The description is consisten...

WordPress Social Media Auto Publish plugin <= 3.6.5 - Reflected Cross-Site Scripting via PostMessage vulnerability

Reflected Cross-Site Scripting via PostMessage vulnerability discovered by Nicolai Hellesnes nico in WordPress Plugin Social Media Auto Publish versions = 3.6.5...

CVE-2025-14703

A vulnerability has been found in Shiguangwu sgwbox N3 2.0.25. The affected element is an unknown function of the file /fsnotify of the component POST Message Handler. The manipulation of the argument token leads to improper authentication. It is possible to initiate the attack remotely. The...

CVE-2025-14703

A vulnerability has been found in Shiguangwu sgwbox N3 2.0.25. The affected element is an unknown function of the file /fsnotify of the component POST Message Handler. The manipulation of the argument token leads to improper authentication. It is possible to initiate the attack remotely. The...

CVE-2025-14703

A vulnerability has been found in Shiguangwu sgwbox N3 2.0.25. The affected element is an unknown function of the file /fsnotify of the component POST Message Handler. The manipulation of the argument token leads to improper authentication. It is possible to initiate the attack remotely. The...

CVE-2025-14703 Shiguangwu sgwbox N3 POST Message fsnotify improper authentication

A vulnerability has been found in Shiguangwu sgwbox N3 2.0.25. The affected element is an unknown function of the file /fsnotify of the component POST Message Handler. The manipulation of the argument token leads to improper authentication. It is possible to initiate the attack remotely. The...

EUVD-2025-203325

A vulnerability has been found in Shiguangwu sgwbox N3 2.0.25. The affected element is an unknown function of the file /fsnotify of the component POST Message Handler. The manipulation of the argument token leads to improper authentication. It is possible to initiate the attack remotely. The...

CVE-2025-12076

The Social Media Auto Publish plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via PostMessage parameter in all versions up to, and including, 3.6.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject...