PT-2026-88166

In Stapler 1839.ved17667b a eb 5 through 2107.v8dfcb e8ed317 both inclusive, except 2088.2093.vd7c3e58008a 6, included in Jenkins 2.447 through 2.579 both inclusive, LTS 2.452.1 through 2.568.2 both inclusive, an HTTP endpoint serving dynamically generated JavaScript resources embeds the user's...

PT-2026-87176

UC Browser for Android package com.UCMobile.intl, version 13.7.8.1314 contains a Universal Cross-Site Scripting vulnerability that allows an attacker to execute arbitrary JavaScript in the context of any origin. An attacker hosts a specially crafted URL on a UC-owned domain via a reflected XSS th...

PT-2026-88317

Improper input validation in the Vega expression function implementation in OpenSearch Dashboards allows a remote authenticated actor with dashboard write permissions to execute arbitrary JavaScript in the context of other users' browser sessions by saving a crafted Vega visualization. The...

ROS-20260908-73-0107

The vulnerability of JavaScript script handlers in Google Chrome and Microsoft Edge browsers is related to type conversion errors. Exploiting this vulnerability can allow a malicious actor to cause service failures...

CVE-2026-75709: Improper Neutralization of Input During Web Page Generation

Adobe Experience Manager is affected by a DOM-based Cross-Site Scripting XSS vulnerability. An attacker could exploit this issue by manipulating the DOM environment to execute malicious JavaScript within the context of the victim's browser. Exploitation of this issue requires user interaction in...

ALSA-2026:65159 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component CVE-2026-74934 firefox: thunderbird: Privilege escalation in the Networking: Cookies component CVE-2026-74953 firefox: thunderbird:...

Cross-site Scripting (XSS)

Overview league/commonmark is a PHP-based Markdown parser which supports the full CommonMark spec. It is based on the CommonMark JS reference implementation. Affected versions of this package are vulnerable to Cross-site Scripting XSS through AttributesHelper::filterAttributes in...

CVE-2026-86440

Affected versions of MISP insufficiently validate URLs used by dashboard widgets, particularly the Button widget. The widget's URL is stored configuration controlled by a user. The previous renderer considered a URL safe if it appeared relative or if its parsed hostname matched the configured MIS...

CVE-2026-86431

league/commonmark thephpleague/commonmark versions = 2.7.0 and 2.9.1 contain a cross-site scripting vulnerability in the AttributesExtension. Prefixing an attribute name with a single U+000C form feed byte e.g. \x0Conclick="alert1" bypasses the AttributesHelper::filterAttributes 'on' event-handle...

CVE-2026-86431 commonmark before 2.9.1 XSS via AttributesExtension form feed bypass

league/commonmark thephpleague/commonmark versions = 2.7.0 and 2.9.1 contain a cross-site scripting vulnerability in the AttributesExtension. Prefixing an attribute name with a single U+000C form feed byte e.g. \x0Conclick="alert1" bypasses the AttributesHelper::filterAttributes 'on' event-handle...

CVE-2026-86431

league/commonmark (thephpleague/commonmark) versions >= 2.7.0 and

EUVD-2026-72389

league/commonmark thephpleague/commonmark versions = 2.7.0 and 2.9.1 contain a cross-site scripting vulnerability in the AttributesExtension. Prefixing an attribute name with a single U+000C form feed byte e.g. \x0Conclick="alert1" bypasses the AttributesHelper::filterAttributes 'on' event-handle...

EUVD-2026-72372

Affected versions of MISP insufficiently validate URLs used by dashboard widgets, particularly the Button widget. The widget's URL is stored configuration controlled by a user. The previous renderer considered a URL safe if it appeared relative or if its parsed hostname matched the configured MIS...

CVE-2026-86440 MISP Dashboard Button Widget Allows Stored XSS via Unsafe javascript: and Backslash URLs

Affected versions of MISP insufficiently validate URLs used by dashboard widgets, particularly the Button widget. The widget's URL is stored configuration controlled by a user. The previous renderer considered a URL safe if it appeared relative or if its parsed hostname matched the configured MIS...

CVE-2026-86440

MISP 's dashboard Button widget is affected by a stored XSS caused by insufficient URL validation. The prior renderer treated a URL as safe if it appeared relative or matched the configured MISP hostname, but failed to reject dangerous schemes such as javascript: or backslash-based authority form...

CVE-2026-86440 MISP Dashboard Button Widget Allows Stored XSS via Unsafe javascript: and Backslash URLs

Affected versions of MISP insufficiently validate URLs used by dashboard widgets, particularly the Button widget. The widget's URL is stored configuration controlled by a user. The previous renderer considered a URL safe if it appeared relative or if its parsed hostname matched the configured MIS...

CVE-2026-86440 MISP Dashboard Button Widget Allows Stored XSS via Unsafe javascript: and Backslash URLs

Affected versions of MISP insufficiently validate URLs used by dashboard widgets, particularly the Button widget. The widget's URL is stored configuration controlled by a user. The previous renderer considered a URL safe if it appeared relative or if its parsed hostname matched the configured MIS...

JSCeal Malware Can Bypass Google Authentication Using Stolen Session Cookies

Cybersecurity researchers have unpacked JSCeal , a sophisticated compiled V8 JavaScript JSC malware with credential harvesting, surveillance, and traffic-interception capabilities. "The payloads are protected with javascript-obfuscator, using multiple techniques including RC4-protected strings,...

CVE-2026-86315

A flaw was found in Samsung Open Source Escargot. This out-of-bounds write vulnerability, caused by numeric truncation, allows an attacker to corrupt native memory. By supplying specially crafted JavaScript for execution, a remote attacker can trigger this flaw, leading to the host process crashi...

CVE-2026-86315

An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to corrupt native memory and crash the host process via a crafted class definition whose instance initialization entry count exceeds UINT16MA...