Description

Apostrophe CMS versions between 2.63.0 to 3.3.1 are vulnerable to Stored XSS where an editor uploads an SVG file that contains malicious JavaScript onto the Images module, which triggers XSS once viewed.

Remediation

References

https://github.com/apostrophecms/apostrophe/commit/c8b94ee9c79468f1ce28e31966cb0e0839165e59

Related Vulnerabilities

CVE-2021-21252 Vulnerability in maven package org.webjars.bowergithub.jquery-validation:jquery-validation

CVE-2020-13934 Vulnerability in maven package org.apache.tomcat.embed:tomcat-embed-core

CVE-2020-27223 Vulnerability in maven package org.eclipse.jetty:jetty-server

CVE-2021-39150 Vulnerability in maven package com.thoughtworks.xstream:xstream

CVE-2020-13935 Vulnerability in maven package org.apache.tomcat:tomcat-websocket

Severity

Medium

Classification

CWE-79 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Tags

Patch Third Party Advisory