Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)

Related advisoryThis advisory tracks a regression of the original Excel-preview XSS that was publicly disclosed and patched under GHSA-jwf8-pv5p-vhmc patched in v0.8.0. The same root cause — XLSX.utils.sheettohtml output rendered via @html excelHtml without DOMPurify — was reintroduced sometime...

PYSEC-2026-2694 Open WebUI has XSS via SVG in /api/v1/channels/webhooks/{webhook_id}/profile/image

As part of our research on improving our AI pentest, we have uncovered the following issue in Open WebUI. We've manually verified and tided up the report, but you can also find the original agent finding at the bottom of this report. Summary The channel webhook create/update flow accepts arbitrar...

PT-2026-59575

Summary The MultiAgentLedger and MultiAgentMonitor components in the provided code exhibit vulnerabilities that can lead to context leakage and arbitrary file operations. Specifically: 1. Memory State Leakage via Agent ID Collision: The MultiAgentLedger uses a dictionary to store ledgers by agent...

PT-2026-59545

Summary The Flask API endpoint in src/praisonai/api.py renders agent output as HTML without effective sanitization. The sanitize html function relies on the nh3 library, which is not listed as a required or optional dependency in pyproject.toml. When nh3 is absent the default installation, the...

CVE-2026-61445

PraisonAI before 4.6.78 contains arbitrary file write and command execution vulnerabilities in the AICoder component due to missing path validation and command sanitization in LLM tool calls. Attackers can inject malicious prompts through the chat interface to write files to arbitrary filesystem...

CVE-2026-14158 Widget Logic Visual <= 1.52 - Authenticated (Subscriber+) Remote Code Execution via 'nwlv[cod-tag]' Parameter

The Widget Logic Visual plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.52 via the widgetlogicvisualcheckvisibility function. This is due to missing capability check and nonce verification on the widget-logic-update-conditional-tags AJAX action...

Fugue is Vulnerable to Remote Code Execution by Pickle Deserialization via FlaskRPCServer

SummaryThe Fugue framework implements an RPC server system for distributed computing operations. In the corefunctionality of the RPC server implementation, Ifound thatthedecodefunction infugue/rpc/flask.pydirectly usescloudpickle.loadsto deserialize datawithout any sanitization. This creates a...

NiceGUI has a Reflected XSS

SummaryA Cross-Site Scripting XSS risk exists in NiceGUI when developers render unescaped user input into the DOM using ui.html. Before version 3.0, NiceGUI does not enforce HTML or JavaScript sanitization, so applications that directly combine components like ui.input with ui.html without escapi...

CVE-2026-55661 TinaCMS rich-text (slatejson) rendering does not sanitize link/image URLs, allowing stored XSS via dangerous URL schemes

Tina is a headless content management system. In versions prior to @tinacms/mdx 2.1.7 and tinacms 3.9.3, rich-text parsing and the default link/image renderers did not sanitize the url field on Slate link/image nodes. Content containing javascript: or data:text/html URLs — including case-variant,...

CVE-2026-34098 Guardian Language-System XSS via id Parameter in media.php

Guardian language-system fails to sanitize the id GET parameter before inserting it into HTML source and form action attributes in media.php lines 119, 129. An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session...

CVE-2026-13246

The CVE concerns GiveWP – Donation Plugin and Fundraising Platform for WordPress (up to version 4.16.0). A Stored XSS exists in the givewp_campaign_comments shortcode (block_id and similar attributes) due to insufficient sanitization and escaping in CampaignCommentsShortcode::parseAttributes() an...

EUVD-2026-40351

Vibe-Trading before 0.1.10 builds the proposal file path by joining a caller-supplied proposal identifier onto the broker proposals directory without sanitization agent/src/live/mandate/commit.py. A proposal identifier containing path traversal sequences causes the application to load an...

PT-2026-52583

Name of the Vulnerable Software and Affected Versions qrscp affected versions not specified Description The C-STORE handler in the qrscp application fails to sanitize specific instances within attacker-supplied DICOM Digital Imaging and Communications in Medicine datasets. These unsanitized value...

PT-2026-52442

Malicious HTML content could be injected into the email address of an order, which pretix showed without sanitization on the confirmation page for individual tickets in that order...

CVE-2026-4983

CVE-2026-4983 affects the Open VSX Registry where SVG icons uploaded as extensions are not sanitized before storage and are served as image/svg+xml without security headers. This enables stored cross-site scripting (XSS) when users navigate to the icon URL. The impact differs by deployment: on lo...

CVE-2026-55409 Filament: Disabled RichEditor field state can be used for XSS

Filament is a collection of full-stack components for accelerated Laravel development. From 3.0.0 until 3.3.53, a disabled RichEditor field rendered its raw state without sanitizing HTML. Where the data stored in this field's state isn't sanitized already when the form state was filled, an attack...

CVE-2026-12157

The BetterDocs - Knowledge Base Docs & FAQ Solution for Elementor & Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the blockId attribute of the betterdocs/category-slate-layout Gutenberg block in versions up to, and including, 4.5.3. This is due to insufficient...

Heimdall: Forwarded Header Injection via Unsanitized Host Header in Proxy Mode

Summary When Heimdall operates in proxy mode, it constructs the Forwarded HTTP header after executing the matched rule pipeline by inserting the incoming request's Host header value directly into the header string without sanitizing commas or semicolons. This allows an attacker to inject addition...

CVE-2026-12568

The postmandownload module uses the workspace name field from the Postman API to construct the local directory path without sanitization. If a malicious workspace has a name containing path traversal characters, pathlib resolves the path outside the intended output directory, allowing an attacker...

CVE-2026-12568 Arbitrary File Write in postman_download module

The postmandownload module uses the workspace name field from the Postman API to construct the local directory path without sanitization. If a malicious workspace has a name containing path traversal characters, pathlib resolves the path outside the intended output directory, allowing an attacker...