CVE-2021-21043

Reflected Cross-site Scripting (XSS) on version-compare and page-compare tools

Description

ACS Commons version 4.9.2 (and earlier) suffers from a Reflected Cross-site Scripting (XSS) vulnerability in version-compare and page-compare due to invalid JCR characters that are not handled correctly. An attacker 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. Exploitation of this issue requires user interaction in order to be successful.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.33% Top 25%
Third-Party Advisory github.com
Affected: Adobe Experience Manager
Published at:
Updated at:

References

Link Tags
https://github.com/Adobe-Consulting-Services/acs-aem-commons/security/advisories/GHSA-f92j-qf46-p6vm third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-21043?
CVE-2021-21043 has been scored as a medium severity vulnerability.
How to fix CVE-2021-21043?
To fix CVE-2021-21043, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21043 being actively exploited in the wild?
It is possible that CVE-2021-21043 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21043?
CVE-2021-21043 affects Adobe Experience Manager.
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