#xss

Online Musical Instrument Shop IN version 1.0 suffers from a cross site scripting vulnerability.

Loan Management System 2024 version 1.0 suffers from an ignored default credential vulnerability.

### Summary A potential XSS vulnerability exists in Svelte for versions prior to 4.2.19. ### Details Svelte improperly escapes HTML on server-side rendering. It converts strings according to the following rules: - If the string is an attribute value: - `"` -> `&quot;` - `&` -> `&amp;` - Other characters -> No conversion - Otherwise: - `<` -> `&lt;` - `&` -> `&amp;` - Other characters -> No conversion The assumption is that attributes will always stay as such, but in some situation the final DOM tree rendered on browsers is different from what Svelte expects on server-side rendering. This may be leveraged to perform XSS attacks. More specifically, this can occur when injecting malicious content into an attribute within a `<noscript>` tag. ### PoC A vulnerable page (`+page.svelte`): ```html <script> import { page } from "$app/stores" // user input let href = $page.url.searchParams.get("href") ?? "https://example.com"; </script> <noscript> <a href={href}...

WordPress GetYourGuide Ticketing plugin version 1.0.6 suffers from a cross site scripting vulnerability.

WordPress WP Event Manager plugin version 3.1.44 suffers from a cross site scripting vulnerability.

### Summary `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. ### PoC Example target script: ``` <?php require 'vendor/autoload.php'; $reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader("Xlsx"); $spreadsheet = $reader->load(__DIR__ . '/book.xlsx'); $writer = new \PhpOffice\PhpSpreadsheet\Writer\Html($spreadsheet); print($writer->generateHTMLAll()); ``` Save this file in the same directory: [book.xlsx](https://github.com/PHPOffice/PhpSpreadsheet/files/15212797/book.xlsx) Open index.php in a web browser. An alert should be displayed. ### Impact Full takeover of the session of users viewing spreadsheet files as HTML.

vTiger CRM version 7.4.0 suffers from multiple reflective cross site scripting vulnerabilities.

Gitea version 1.22.0 suffers from a cross site scripting vulnerability.

Notemark versions 0.13.0 and below suffer from a cross site scripting vulnerability.

Online Graduate Tracer System version 1.0.0 suffers from an insecure direct object reference vulnerability.