What is CVE-2021-27990?

CVE-2021-27990 is a high-severity vulnerability in Appspace, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-04-14.

How severe is CVE-2021-27990?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-27990 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Appspace

CVE-2021-27990

Appspace 6.2.4 is vulnerable to a broken authentication mechanism where pages such as /medianet/mail.aspx can be called directly and the framework is exposed with layouts, menus and functionalities.

Vulnerability class: Broken Authentication

EPSS: 0.014 (70.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Appspace — versions 6.2.4
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27990?: CVE-2021-27990 is a high-severity vulnerability in Appspace, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-04-14.
How severe is CVE-2021-27990?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-27990 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.