What is the CVSS score of CVE-2021-41563?

CVE-2021-41563 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.6%.

Tad Book3 CVE-2021-41563

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2021-10-08 twcert@cert.org.tw

XSS Tad Book3

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Oct 08, 2021 - 16:15 nvd

MEDIUM 6.1

DescriptionNVD

Tad Book3 editing book function does not filter special characters. Unauthenticated attackers can remotely inject JavaScript syntax and execute stored XSS attacks.

AnalysisAI

Tad Book3 editing book function does not filter special characters. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Tad Book3 editing book function does not filter special characters. Unauthenticated attackers can remotely inject JavaScript syntax and execute stored XSS attacks. Affected products include: Tad Book3 Project Tad Book3.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.