Vulnerability in Altn Mdaemon
CVE-2021-27182
An issue was discovered in MDaemon before 20.0.4. There is an IFRAME injection vulnerability in Webmail (aka WorldClient). It can be exploited via an email message. It allows an attacker to perform any action with the privileges of the attacked user.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.altn.com/Support/SecurityUpdate/MD011221_MDaemon_EN/ (Release Notes, Vendor Advisory)
- github.com/chudyPB/MDaemon-Advisories (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27182?
- CVE-2021-27182 is a high-severity vulnerability in Altn Mdaemon, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2021-04-14.
- How severe is CVE-2021-27182?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-27182 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.