What is the CVSS score of CVE-2021-24240?

CVE-2021-24240 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.0%.

Business Hours Pro CVE-2021-24240

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2021-04-22 contact@wpscan.com

WordPress RCE File Upload Business Hours Pro

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 22, 2021 - 21:15 nvd

CRITICAL 9.8

DescriptionNVD

AnalysisAI

The Business Hours Pro WordPress plugin through 5.5.0 allows a remote attacker to upload arbitrary files using its manual update functionality, leading to an unauthenticated remote code execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. The Business Hours Pro WordPress plugin through 5.5.0 allows a remote attacker to upload arbitrary files using its manual update functionality, leading to an unauthenticated remote code execution vulnerability. Affected products include: Aivahthemes Business Hours Pro. Version information: through 5.5.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.