CVE-2021-21043

MEDIUM 6.1CVE-2021-21043 · Published 02/02/2021 · updated 17/06/2026

In short

CVE-2021-21043 is a MEDIUM (CVSS 6.1) vulnerability affecting adobe consulting services commons (adobe).
Chance of exploitation in the next 30 days (EPSS): 3.4%, higher than 88.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
adobe consulting services commons adobe	`≤ 4.9.2`	No fix yet

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.

References

Adobe-Consulting-Services/acs-aem-commons security advisory · Third Party Advisory

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