XSS in Mitre Caldera
CVE-2021-42558
An issue was discovered in CALDERA 2.8.1. It contains multiple reflected, stored, and self XSS vulnerabilities that may be exploited by authenticated and unauthenticated attackers.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.011 (63.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/mitre/caldera/releases (Release Notes)
- github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42558-Multiple XSS-MI… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42558?
- CVE-2021-42558 is a medium-severity vulnerability in Mitre Caldera, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-12.
- How severe is CVE-2021-42558?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-42558 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.