CVE-2026-9309

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScrip...

EUVD-2026-34319

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In versions 4.9.0 through 5.0.0, an authenticated user with project-editor permissions can store arbitrary HTML/JavaScript in the ChartDatasetConfig.legend field. The...

CVE-2026-41897

Mantis Bug Tracker MantisBT is an open source issue tracker. From 1.0.0 to 2.28.1, lack of validation of filtertarget parameter on returndynamicfilters.php normally used as an AJAX in View Issues Page allows an attacker to inject arbitrary HTML if the target is a TEXTAREA custom field. This...

EUVD-2026-31995

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href="" and the text value used as the visible link label are inserted into tags via a plain Python format...

GHSA-VR9V-27GG-QGX4 Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. Patches This issue has been patched in 17.4.0...

PT-2026-42665

Summary samlify’s template substitution only escapes attribute contexts. Values inserted into element text e.g., are not escaped. A normal user can inject XML markup into an attribute value e.g., email, name and add new elements inside the signed assertion. The IdP then signs the tampered asserti...

Astra Linux - уязвимость в firefox, thunderbird

Using markup injection, an attacker could steal nonce values. This could be used to bypass strict content security policies. This vulnerability affects Firefox 124, Firefox ESR 115.9, and Thunderbird 115.9...

CVE-2025-40903

A Stored HTML Injection vulnerability was discovered in the Schedule Restore Archive functionality due to improper validation of an input parameter. An authenticated user with administrative privileges can define a malicious restore schedule containing HTML tags. When a victim views the affected...

SiYuan 跨站脚本漏洞

SiYuan is an open-source personal knowledge management system developed by SiYuan. Versions of SiYuan prior to 3.7.0 had a cross-site scripting vulnerability. This vulnerability occurred because the view name stored in the kernel did not undergo HTML escaping, allowing HTML injection and ultimate...

EUVD-2026-28652

Brave CMS is an open-source CMS. Prior to commit 6c56603, the contact form is publicly accessible no authentication required. User-supplied message text is passed through PHP's nl2br function, which converts newlines to tags but does not escape HTML. The resulting string is then passed to a Blade...

SUSE CVE-2026-41674

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. In @xmldom/xmldom prior to versions 0.9.10 and 0.8.13 and xmldom version 0.6.0 and prior, the package serializes DocumentType node fields internalSubset, publicId, systemId verbatim without any...

CVE-2018-25269 ICEWARP 11.0.0.0 Cross-Site Scripting via Email HTML Injection

ICEWARP 10.3.4 and 11.0.0.0 contains a cross-site scripting vulnerability that allows attackers to inject malicious HTML elements into emails by embedding base64-encoded payloads in object and embed tags. Attackers can craft emails containing data URIs with embedded scripts that execute in the...

pretalx mail templates vulnerable to email injection via unescaped user-controlled placeholders

An unauthenticated attacker can send arbitrary HTML-rendered emails from a pretalx instance's configured sender address by embedding malformed HTML or markdown link syntax in a user-controlled template placeholder such as the account display name. The most direct vector is the password-reset flow...

EUVD-2026-19653

Papra is a minimalistic document management and archiving platform. Prior to 26.4.0, transactional email templates in Papra interpolate user.name directly into HTML without escaping or sanitization. An attacker who registers with a display name containing HTML tags will have those tags injected...

CVE-2026-35208

lichess.org is the forever free, adless and open source chess server. Any approved streamer can inject arbitrary HTML into /streamer and the homepage “Live streams” widget by placing markup in their Twitch/YouTube stream title. CSP is present and blocks inline script execution, but the issue is...

CVE-2026-35466

XSS vulnerability in cveInterface.js allows for inject HTML to be passed to display, as cveInterface trusts input from CVE API services...

CVE-2026-34601

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9, xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator to be inserted into a...

CVE-2026-34601 xmldom: XML injection via unsafe CDATA serialization allows attacker-controlled markup insertion

xmldom is a pure JavaScript W3C standard-based XML DOM Level 2 Core DOMParser and XMLSerializer module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9, xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator to be inserted into a...

CVE-2026-29136

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to inject HTML into notification emails about new CA certificates...

CVE-2026-29136

Affected software: SEPPmail Secure Email Gateway (pre-15.0.3). The issue is HTML injection in notification emails about new CA certificates, caused by and/or enabling injection into these messages. Impact is limited to the ability to inject HTML into CA-cert notification emails; no additional det...