Description
ACS Commons version 5.1.x (and earlier) suffers from a Reflected Cross-site Scripting (XSS) vulnerability in /apps/acs-commons/content/page-compare.html endpoint via the a and b GET parameters. User input submitted via these parameters is not validated or sanitised. An attacker must provide a link to someone with access to AEM Author, and could potentially exploit this vulnerability to inject malicious JavaScript content into vulnerable form fields and execute it within the context of the victim's browser. The exploitation of this issue requires user interaction in order to be successful.
Remediation
References
https://github.com/Adobe-Consulting-Services/acs-aem-commons/security/advisories/GHSA-w5m2-299g-rff5
Related Vulnerabilities
CVE-2021-32820 Vulnerability in npm package express-handlebars
CVE-2022-25921 Vulnerability in npm package morgan-json
CVE-2018-6333 Vulnerability in npm package nuclide
CVE-2020-28052 Vulnerability in maven package org.bouncycastle:bcprov-jdk15on
CVE-2023-40349 Vulnerability in maven package org.jenkins-ci.plugins:gogs-webhook