Astra Linux – Vulnerability in Firefox

An attacker was able to insert an event handler into a privileged object, allowing arbitrary JavaScript execution in the parent process. Note: This vulnerability only affects Desktop Firefox; mobile versions of Firefox are not affected. This vulnerability applies to Firefox versions earlier than...

CVE-2026-53742

Simple Link Directory through 9.0.4 echoes embed shortcode attributes into HTML data attributes without escaping in the embedder template. Attackers with contributor access can craft a shortcode attribute that injects an event handler executing in a viewer's browser...

PT-2026-48556

Simple Link Directory through 9.0.4 echoes embed shortcode attributes into HTML data attributes without escaping in the embedder template. Attackers with contributor access can craft a shortcode attribute that injects an event handler executing in a viewer's browser...

EUVD-2026-35703

Svelte is a performance oriented web framework. Prior to version 5.55.7, when using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an application spreads user-controlled or external data as element attributes, an...

MCP Registry 跨站脚本漏洞

MCP Registry is an open-source MCP server application store developed by Model Context Protocol. Versions of MCP Registry prior to 1.7.7 contained a cross-site scripting vulnerability. This vulnerability originated from the public directory UI; server-side validation only checked whether the URL...

Important: firefox

Issue Overview: AppendEncodedAttributeValue, ExtraSpaceNeededForAttrEncoding and AppendEncodedCharacters could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write. This vulnerability affects Firefox 124, Firefox ESR 115.9, and...

Mozilla: Privileged JavaScript Execution via Event Handlers

The Mozilla Foundation Security Advisory describes this flaw as: An attacker was able to inject an event handler into a privileged object that would allow arbitrary JavaScript execution in the parent process...

Mozilla: Privileged JavaScript Execution via Event Handlers

The Mozilla Foundation Security Advisory describes this flaw as: An attacker was able to inject an event handler into a privileged object that would allow arbitrary JavaScript execution in the parent process...

Debian dla-3775 : firefox-esr - security update

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3775 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-3775-1 [email protected]...

RHEL 8 : firefox (RHSA-2024:1490)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2024:1490 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox...