The vulnerability of the postMessage component in the Firefox web browser and Thunderbird email client, which allows a hacker to trigger a service failure.

The vulnerability of the postMessage component in the Firefox web browser and the Thunderbird email client is related to the。 Exploiting this vulnerability can allow a malicious actor to cause service failures remotely...

Astra Linux – Vulnerability in Firefox

Mitigation bypass in the DOM: PostMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

CVE-2025-51684

CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting XSS. The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of...

CVE-2025-51684

The CleverTap Web SDK (version 1.15.1 ) is vulnerable to Cross-Site Scripting (XSS) due to improper neutralization of input during web page generation. Specifically, the renderCustomHtml() function in src/util/campaignRender/nativeDisplay.js fails to sanitize untrusted data received via window.po...

CVE-2025-51684

CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting XSS. The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of...

CVE-2025-51684

CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting XSS. The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of...

CVE-2026-58500 MCP Appium: Unescaped Locator Data XSS in MCP-UI Resource (createLocatorGeneratorUI)

MCP Appium is an MCP server that provides AI assistants with tools to automate mobile app testing on Android and iOS. In versions prior to 1.85.10, the createLocatorGeneratorUI function interpolates attacker-controlled element attributes — text, content-desc, resource-id, and locator selector...

CVE-2026-55660 TinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover

Tina is a headless content management system. In versions prior to @tinacms/app 2.5.6 and tinacms 3.9.3, cross-origin postMessage handlers and a rich-text URL-sanitization bypass enable stored XSS and session takeover. The library registers window message listeners — the useTina overlay handler,...

CVE-2026-55660

Tina is a headless content management system. In versions prior to @tinacms/app 2.5.6 and tinacms 3.9.3, cross-origin postMessage handlers and a rich-text URL-sanitization bypass enable stored XSS and session takeover. The library registers window message listeners — the useTina overlay handler,...

CVE-2026-55660

CVE-2026-55660 : TinaCMS and Tinacms app prior to versions 2.5.6 / 3.9.3 allow cross-origin postMessage abuse due to window message listeners that do not validate event.origin/source and post to non-specific origins, combined with insufficient URL sanitization in rich-text content. This enables s...

CVE-2026-55660 TinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover

Tina is a headless content management system. In versions prior to @tinacms/app 2.5.6 and tinacms 3.9.3, cross-origin postMessage handlers and a rich-text URL-sanitization bypass enable stored XSS and session takeover. The library registers window message listeners — the useTina overlay handler,...

CVE-2026-55660: Improper Neutralization of Input During Web Page Generation

Tina is a headless content management system. In versions prior to @tinacms/app 2.5.6 and tinacms 3.9.3, cross-origin postMessage handlers and a rich-text URL-sanitization bypass enable stored XSS and session takeover. The library registers window message listeners — the useTina overlay handler,...

CVE-2026-41886

locize is a localization platform that connects code and i18n setup. Prior to version 4.0.21, the locize client SDK registers a window.addEventListener"message", … handler that dispatches to registered internal handlers editKey, commitKey, commitKeys, isLocizeEnabled, requestInitialize, … without...

CVE-2026-47099

TeleJSON prior to 6.0.0 contains a DOM-based cross-site scripting vulnerability in the parse function that allows attackers to execute arbitrary JavaScript by delivering a crafted JSON payload containing a malicious constructor-name property value. The custom reviver passes the constructor name...

CVE-2026-47099 TeleJSON < 6.0.0 DOM-based XSS via parse() Function

TeleJSON prior to 6.0.0 contains a DOM-based cross-site scripting vulnerability in the parse function that allows attackers to execute arbitrary JavaScript by delivering a crafted JSON payload containing a malicious constructor-name property value. The custom reviver passes the constructor name...

CVE-2026-47099 TeleJSON < 6.0.0 DOM-based XSS via parse() Function

TeleJSON prior to 6.0.0 contains a DOM-based cross-site scripting vulnerability in the parse function that allows attackers to execute arbitrary JavaScript by delivering a crafted JSON payload containing a malicious constructor-name property value. The custom reviver passes the constructor name...

CVE-2026-47099: Improper Neutralization of Input During Web Page Generation

TeleJSON prior to 6.0.0 contains a DOM-based cross-site scripting vulnerability in the parse function that allows attackers to execute arbitrary JavaScript by delivering a crafted JSON payload containing a malicious constructor-name property value. The custom reviver passes the constructor name...

CVE-2026-45243

Summarize prior to 0.15.1 contains a missing authorization vulnerability in the content script window.postMessage bridge that allows malicious pages to perform unauthorized operations on automation artifacts. Attackers can simulate runtime messages with spoofed sender identifiers to list, read,...

Missing Authorization

Overview @steipete/summarize is a Link → clean text → summary. Affected versions of this package are vulnerable to Missing Authorization via the window.postMessage bridge in the content script. An attacker can access, modify, or delete automation artifacts by sending crafted runtime messages with...

Summarize contains a missing authorization vulnerability

Summarize prior to 0.15.0 contains a missing authorization vulnerability in the content script window.postMessage bridge that allows malicious pages to perform unauthorized operations on automation artifacts. Attackers can simulate runtime messages with spoofed sender identifiers to list, read,...