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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.014 (72.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Appspace — versions 6.2.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
- github.com/syedsohaibkarim/PoC-BrokenAuth-AppSpace6.2.4 (Third Party Advisory)
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.