GHSA-VJM7-M4XH-7WRC Open WebUI vulnerable to Stored XSS via iFrame embeds in response messages

Summary Manually modifying chat history allows setting the embeds property on a response message, the content of which is loaded into an iFrame with a sandbox that has allow-scripts and allow-same-origin set, ignoring the "iframe Sandbox Allow Same Origin" configuration. This enables stored XSS o...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS in the CitationModal process. An attacker can execute arbitrary JavaScript in the context of another user's session by crafting a malicious document payload and manipulating the html...

GHSA-XC8P-9RR6-97R2 Open WebUI vulnerable to Stored XSS via iFrame in citations model

Summary Manually modifying chat history allows setting the html property within document metadata. This causes the frontend to enter a code path that treats document contents as HTML, and render them in an iFrame when the citation is previewed. This allows stored XSS via a weaponised document...

PYSEC-2026-1702 NiceGUI apps which use `ui.sub_pages` vulnerable to zero-click XSS

Summary An unsafe implementation in the pushstate event listener used by ui.subpages allows an attacker to manipulate the fragment identifier of the URL, which they can do despite being cross-site, using an iframe. Details The problem is traced as follows: 1. On pushstate, handleStateEvent is...

PYSEC-2026-1692 nbgrader's `frame-ancestors: self` grants all users access to formgrader

Impact Enabling frame-ancestors: 'self' grants any JupyterHub user the ability to extract formgrader content by sending malicious links to users with access to formgrader, at least when using the default JupyterHub configuration of enablesubdomains = False. 1915 disables a protection which would...

PYSEC-2026-1797 Cross-Frame Scripting vulnerability has been found on Plone CMS

A Cross-Frame Scripting vulnerability has been found on Plone CMS affecting version below 6.0.5. An attacker could store a malicious URL to be opened by an administrator and execute a malicios iframe element...

PT-2026-56249

Name of the Vulnerable Software and Affected Versions Dashy versions prior to 4.3.7 Description The workspace view fails to validate the scheme of the URL query parameter before assigning it to an iframe source. This allows an attacker to execute JavaScript on the Dashy origin by tricking a...

CVE-2026-6954

Cross-Site Scripting XSS vulnerability in Intermark IT's WebControl CMS v3.5. This vulnerability allows an attacker to execute JavaScript code or inject a dynamic iframe into the victim’s browser by sending a malicious URL via the 'urlDestino' parameter in '/portal.do'. This vulnerability can be...

CVE-2026-50740

Affected software/issue: Revive Adserver

CVE-2026-50740

A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.0.7 and earlier. A low‑privileged user could exploit the refresh parameter of the iFrame invocation tag to perform reflected XSS attacks...

CVE-2026-50740

A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.0.7 and earlier. A low‑privileged user could exploit the refresh parameter of the iFrame invocation tag to perform reflected XSS attacks...

CVE-2026-54025 LibreChat: Stored XSS via unescaped image alt text in markdown artifact preview

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, there is a vulnerability in LibreChat's markdown artifact preview pipeline. The marked library v15.0.12 does not HTML-escape double-quote characters in image alt text when a custom renderer falls throu...

CVE-2026-54759

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove elements. Combined with the SiYuan Electron client's permissive security configuration, an attacker can include a malicious in a Bazaar package README that executes arbitrary...

CVE-2026-54759 SiYuan: Lute HTML sanitizer allows `<iframe>` tags in Bazaar package README, leading to arbitrary command execution via SiYuan Electron client

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove elements. Combined with the SiYuan Electron client's permissive security configuration, an attacker can include a malicious in a Bazaar package README that executes arbitrary...

CVE-2026-54759

SiYuan’s Lute HTML sanitizer (prior to version 3.7.0) fails to remove elements. When combined with the SiYuan Electron client’s permissive security configuration, a malicious in a Bazaar package README can trigger arbitrary command execution on the victim’s machine when package details are view...

PT-2026-52112

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.0 Description Lute's HTML sanitizer fails to remove elements. When combined with the permissive security configuration of the SiYuan Electron client, this allows an attacker to embed a malicious within a Bazaar...

CVE-2025-71331

Flowise before 3.0.8 contains a cross-site scripting XSS vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload e.g., in a chat box, or by having a custom agent function return an X...

EUVD-2025-210289

Flowise before 3.0.8 contains a cross-site scripting XSS vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload e.g., in a chat box, or by having a custom agent function return an X...

CVE-2025-71331

Flowise (pre-3.0.8) exposes a Cross-Site Scripting (XSS) vulnerability due to insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript via an iframe payload in chat or have a custom agent function return an external XSS payload. The inj...

CVE-2025-71331 Flowise - Cross-Site Scripting in Chat Messages and Agent Workflows

Flowise before 3.0.8 contains a cross-site scripting XSS vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload e.g., in a chat box, or by having a custom agent function return an X...