CVE-2018-5158

El visor de PDF no sanea suficientemente las funciones de la calculadora PostScript, lo que permite inyectar JavaScript malicioso a través de un archivo PDF manipulado. Este JavaScript puede ser ejecutado por su worker con los permisos del visor de PDF. Esta vulnerabilidad afecta a las versiones anteriores a la 52.8 de Firefox ESR y las versiones anteriores a la 60 de Firefox.

The Algori PDF Viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to the use of a vulnerable version of pdf.js in all versions up to, and including, 1.0.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

USN-3645-1 fixed vulnerabilities in Firefox. The update caused an issue where users experienced long UI pauses in some circumstances. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, bypass same-origin restrictions, conduct cross-site scripting attacks, install lightweight themes without user interaction, spoof the filename in the downloads panel, or execute arbitrary code. Various other issues were also addressed.