Buffer overflow

Owncast is an open source, self-hosted live video streaming and chat server. In affected versions inline scripts are executed when Javascript is parsed via a paste action. This issue is patched in 0.0.9 by blocking unsafe-inline Content Security Policy and specifying the script-src. The worker-sr...

PT-2020-2103

Name of the Vulnerable Software and Affected Versions Mozilla Bleach versions prior to 3.12 Description A mutation XSS issue affects users calling bleach.clean with specific settings, including whitelisting svg or math tags, allowing RCDATA tags, and setting the strip keyword argument to False...

Firefox Blocks Inline and Eval JavaScript on Internal Pages to Prevent Injection Attacks

In an effort to mitigate a large class of potential cross-site scripting issues in Firefox, Mozilla has blocked execution of all inline scripts and potentially dangerous eval-like functions for built-in "about: pages" that are the gateway to sensitive preferences, settings, and statics of the...

Missing 'X-XSS-Protection' Header

The HTTP 'X-XSS-Protection' response header is a feature of old browsers that allows websites to control their XSS auditors.\n\nThe server is not configured to return a 'X-XSS-Protection' header which means that any pages on this website could be at risk of a Cross-Site Scripting XSS attack. This...

KLA10689 Multiple vulnerabilities in Mozilla Firefox and Firefox ESR

Multiple serious vulnerabilities have been found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to cause denial of service, spoof user interface, bypass security restrictions, execute arbitrary code or obtain sensitive information. Below is a complete list of vulnerabilitie...

CSP 1.0 Added to Firefox to Block XSS Attacks

After years of discussion and waiting, Mozilla has finally added Content Security Policy 1.0, a defense against some common attacks such as XSS, to its Firefox browser. CSP already has been implemented in Google Chrome and Internet Explorer and there was a limited implementation of it in Firefox...