TinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover

TinaCMS registers window message listeners — the useTina overlay handler, the OAuth authentication popup handler, and the admin↔preview iframe GraphQL reducer — that act on event.data without verifying event.origin or event.source, and post messages using non-specific target origins. A page the...

GHSA-7H5P-637F-JFR7 StarCitizenWiki Extension Embed Video: Stored XSS via unsanitized class passed to template

Summary The user supplied class value is fed directly into the sprintf call that creates HTML. You can add a quote to escape the class and then inject arbitrary html/javascript to the final output. Details The template here adds a figure with a class that is substituted in. This value is provided...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via unsanitized input in the class attribute of the HTML template. An attacker can execute arbitrary JavaScript in the context of the affected site by injecting malicious code through user-supplied input. Detail...

GHSA-C29Q-5XM7-5P62 StarCitizenWiki Extension Embed Video: Stored XSS via unsanitized service name in exception text

Summary When passing an unknown service name to embedvideo, an error message is rendered containing the invalid service name. The service name is not sanitized and can contain HTML. Details There is a hardcoded list of allowed services in a switch statement inside EmbedServiceFactorynewFromName...

EUVD-2026-38085

Improper neutralization of input during web page generation 'cross-site scripting' in Microsoft Edge Chromium-based allows an authorized attacker to perform spoofing over a network...

CVE-2026-32208

Improper neutralization of input during web page generation 'cross-site scripting' in Microsoft Entra ID allows an authorized attacker to perform spoofing over a network...

parse-server: Stored XSS via non-standard file extension bypassing file upload extension blocklist

Impact Parse Server's default fileUpload.fileExtensions blocklist is intended to prevent uploading files that browsers render as active content such as HTML and SVG, which can be used to perform stored cross-site scripting XSS attacks against other users. The blocklist could be bypassed by...

GHSA-V8X7-R927-CC93 parse-server: Stored XSS via non-standard file extension bypassing file upload extension blocklist

Impact Parse Server's default fileUpload.fileExtensions blocklist is intended to prevent uploading files that browsers render as active content such as HTML and SVG, which can be used to perform stored cross-site scripting XSS attacks against other users. The blocklist could be bypassed by...

Cross-site Scripting (XSS)

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the file upload extension check in FilesRouter in src/FilesRouter and FilesController. An...

GHSA-F962-V9HR-PFG5 jupyterlab-git extension: Stored XSS leading to RCE

Overview Amazon Web Services AWS Security has identified a stored cross-site scripting XSS issue in the jupyterlab-git JupyterLab extension that can lead to remote code execution RCE. The issue exists in the PlainTextDiff.ts component, where the createHeader method passes Git filenames directly t...

Cross-site Scripting (XSS)

Overview @jupyterlab/git is an A JupyterLab extension for version control using git Affected versions of this package are vulnerable to Cross-site Scripting XSS in the createHeader method. An attacker can execute arbitrary JavaScript in another user's browser session by crafting a malicious...

EUVD-2026-36539

parse-server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist...

GHSA-MWQM-4FW3-CJVR symfony/ux-autocomplete: XSS via unescaped AJAX response data

Description The Stimulus controller shipped with symfony/ux-autocomplete renders AJAX response items into the dropdown by interpolating the text field directly into HTML template literals $itemlabelField inside createAutocompleteWithRemoteData. The value is parsed as HTML rather than text, so any...

symfony/ux-live-component: XSS via attacker-controlled child component tag

Description Symfony\UX\LiveComponent\Util\ChildComponentPartialRenderer::createHtml interpolates the $childTag argument directly into the HTML output as a tag name, without escaping or validation. The value originates from client-controlled JSON childrenid.tag parsed by LiveComponentSubscriber an...

GHSA-Q76J-GCG9-VXC6 Hugo: XSS via unescaped code-fence language in default code block renderer

Hugo's default code-block renderer wrote the Markdown code-fence language / info-string into the wrapper without HTML escaping. A fence info-string containing a quote and a payload breaks out of the attribute and injects a live script element. This is not an issue if you fully trust every file...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the default code block rendering. An attacker can execute arbitrary JavaScript in the context of users viewing generated pages by supplying a crafted code-fence language info-string containing malicious...

CVE-2026-43915

A flaw was found in Coturn. A remote attacker can exploit a stored Cross-Site Scripting XSS vulnerability in the web-admin HTTPS interface by creating a TURN allocation with a crafted username. This allows the attacker to inject malicious HTML or JavaScript code. When an authenticated web-admin...

CVE-2026-12621

Improper neutralization of input during web page generation XSS vulnerability in the GridTime 3000 password reset form allows XSS. This issue affects GridTime 3000: from 1.0r0.03 before 1.2r0.0...

CVE-2026-12619

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Microchip GridTime 3000 allows Cross-Site Scripting XSS. This issue affects GridTime 3000: from 1.0r0.03 through 1.1r0.0...

CVE-2026-12621

GridTime 3000 GNSS Time Server Password Reset form is vulnerable to XSS due to improper neutralization of input during web page generation. Affected from 1.0r0.03 up to, but not including, 1.2r0.0. Base CVSS v4 score is 5.3 (Medium). No exploitation details are provided in the documents; no remed...