What is CVE-2021-34821?

CVE-2021-34821 is a medium-severity vulnerability in Aat Novus Management System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-19.

How severe is CVE-2021-34821?

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

XSS in Aat Novus Management System

CVE-2021-34821

Cross Site Scripting (XSS) vulnerability exists in AAT Novus Management System through 1.51.2. The WebUI has wrong HTTP 404 error handling implemented. A remote, unauthenticated attacker may be able to exploit the issue by sending malicious HTTP requests to non-existing URIs. The value of the URL path filename is copied into the HTML document as plain text tags.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (54.1th 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

Aat Novus_management_system
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (mailing-list, x_refsource_FULLDISC, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-34821?: CVE-2021-34821 is a medium-severity vulnerability in Aat Novus Management System, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-07-19.
How severe is CVE-2021-34821?: Medium severity. CVSS v3 base score is 6.1 out of 10.