What is the CVSS score of CVE-2021-27182?

CVE-2021-27182 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.6%.

Is there a public PoC exploit available for CVE-2021-27182?

Yes, a public proof-of-concept exploit is available for CVE-2021-27182. Prioritise patching immediately. EPSS: 1.6%.

Mdaemon CVE-2021-27182

HIGH

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2021-04-14 cve@mitre.org

Code Injection Mdaemon

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 14, 2021 - 23:15 nvd

HIGH 8.8

DescriptionNVD

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.

AnalysisAI

An issue was discovered in MDaemon before 20.0.4. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-74. 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. Affected products include: Altn Mdaemon. Version information: before 20.0.4..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.