What is CVE-2021-21043?

CVE-2021-21043 is a medium-severity vulnerability in Adobe Consulting Services Commons, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-02-02.

How severe is CVE-2021-21043?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Adobe Consulting Services Commons

CVE-2021-21043

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.033 (87.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Adobe Adobe_consulting_services_commons
Adobe Experience Manager — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@adobe.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21043?: CVE-2021-21043 is a medium-severity vulnerability in Adobe Consulting Services Commons, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-02-02.
How severe is CVE-2021-21043?: Medium severity. CVSS v3 base score is 6.1 out of 10.