code16 Sharp vulnerable to stored XSS via iframe srcdoc Attribute

Impact A Stored Cross-Site Scripting XSS vulnerability exists in the rich text editor due to improper sanitization of the srcdoc attribute on elements. While the underlying Symfony HtmlSanitizer correctly HTML-encodes special characters inside the attribute value e.g., converting to script, the...

CVE-2026-61823

The code16 Sharp framework (a Laravel-based CMS/admin interface) is vulnerable to stored cross-site scripting (XSS) in versions prior to 9.22.5 . The root cause is that the rich-text editor's HTML sanitizer allows the srcdoc attribute on iframe elements. While the sanitizer HTML-encodes the inter...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the removeScriptElement plugin, which fails to strip SVG event attributes e.g. onclick, onload, javascript: and vbscript: scheme URLs, executable data: URLs, and srcdoc attributes inside foreignObject...

CVE-2026-82642 Readest: unsanitized iframe srcdoc attribute in the EPUB sanitizer can lead to arbitrary code execution

Readest is an open-source e-book reader built on Tauri. In versions prior to 0.11.16, EPUB chapter HTML is sanitized with DOMPurify using a configuration that forbade only the tag FORBIDTAGS: 'script' in apps/readest-app/src/services/transformers/sanitizer.ts. DOMPurify does not parse the content...

PT-2026-63355

n8n before 1.123.64, 2.x before 2.29.8, and before 2.30.1 contains a DOM-based cross-site scripting vulnerability in the HTML preview, which renders execution output into an iframe srcdoc without the sandbox attribute. A sanitizer bypass allows injected script to execute same-origin as the editor...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS through incomplete sanitization of the README rendering process in the marketplace UI. An attacker can execute arbitrary scripts in the Electron context with full application privileges by embedding an iframe ta...

CVE-2026-40922 SiYuan: Incomplete sanitization of bazaar README allows stored XSS via iframe srcdoc (incomplete fix for CVE-2026-33066)

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

CVE-2026-39426: Improper Neutralization of Input During Web Page Generation

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting XSS vulnerability where the frontend's MdRenderer.vue component parses custom tags from LLM responses or Application Prologue configurations, bypassing standard Markdown sanitizatio...

CVE-2026-39390

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Google Maps iframe setting cMap field in compInfosPost sanitizes input using striptags with an allowlist and regex-based removal of...

PT-2026-31317

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the Google Maps iframe setting cMap field in compInfosPost sanitizes input using strip tags with an allowlist and regex-based removal of...

PT-2026-33376

Name of the Vulnerable Software and Affected Versions SiYuan versions 3.6.1 through 3.6.3 Description An issue exists in the bazaar README rendering where the Lute HTML sanitizer fails to block iframe tags and does not effectively filter srcdoc attributes containing raw HTML. A malicious bazaar...

CVE-2026-31876

Notesnook is a note-taking app focused on user privacy & ease of use. Prior to 3.3.9, a Stored Cross-Site Scripting XSS vulnerability existed in Notesnook's editor embed component when rendering Twitter/X embed URLs. The tweetToEmbed function in component.tsx interpolated the user-supplied URL...

CVE-2023-0546: Undefined Security Weakness

The Contact Form Plugin WordPress plugin before 4.3.25 does not properly sanitize and escape the srcdoc attribute in iframes in it's custom HTML field type, allowing a logged in user with roles as low as contributor to inject arbitrary javascript into a form which will trigger for any visitor to...

DEBIAN-CVE-2022-3032

When receiving an HTML email that contained an iframe element, which used a srcdoc attribute to define the inner HTML document, remote objects specified in the nested document, for example images or videos, were not blocked. Rather, the network was accessed, the objects were loaded and displayed...

Unsecured File

thunderbird allows unsecured files. The vulnerability exists due to an issue of when receiving an HTML email that contained an iframe element, which used a srcdoc attribute to define the internal HTML document, remote objects specified in the nested document for example, images or videos, were no...

Modern Browser XSS Filter Evasion

Modern browsers usually have an antiXSS filter, that protects users from some of the consequences of this kind of attacks. Normally, they block cross site scripting execution, so the "injected" code normally, JavaScript or HTML is not executed inside victim's browser. Chrome calls this filter...

XSS Filter Bypass Bug Found in Chrome and Safari

There is a bug in the anti-cross site scripting filter in Chrome and Safari that enables an attacker to bypass the filter in some cases and use an XSS flaw on a given site to compromise visitors’s machines. The vulnerability is fairly simple to exploit and a researcher has posted proof-of-concept...