What is the CVSS score of CVE-2021-28121?

CVE-2021-28121 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: 1.7%.

Virtual Robots Txt CVE-2021-28121

CRITICAL

2021-08-12 cve@mitre.org

Information Disclosure Virtual Robots Txt

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

Aug 12, 2021 - 22:15 nvd

CRITICAL 9.8

DescriptionNVD

Virtual Robots.txt before 1.10 does not block HTML tags in the robots.txt field.

AnalysisAI

Virtual Robots.txt before 1.10 does not block HTML tags in the robots.txt field. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

Virtual Robots.txt before 1.10 does not block HTML tags in the robots.txt field. Affected products include: Virtual Robots.Txt Project Virtual Robots.Txt. Version information: before 1.10.

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.