CVE-2021-21043: adobe experience_manager Cross-site Scripting
Vulnerability summary
CVE-2021-21043 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in adobe experience_manager. EPSS estimates a 3.34% chance of exploitation in the next 30 days, higher than 88.4% of scored vulnerabilities.
Timeline
- 02-02-2021PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
3.34%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.34% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Adobe1 product
- experience_manager≥ unspecified, ≤ 4.9.2 | ≥ unspecified, ≤ None
1 vendor · 1 product