What is the CVSS score of CVE-2020-24963?

CVE-2020-24963 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 1.9%.

Is there a public PoC exploit available for CVE-2020-24963?

Yes, a public proof-of-concept exploit is available for CVE-2020-24963. Prioritise patching immediately. EPSS: 1.9%.

Best Support System CVE-2020-24963

MEDIUM

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

2020-09-04 cve@mitre.org

XSS Best Support System

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Sep 04, 2020 - 16:15 nvd

MEDIUM 5.4

DescriptionNVD

An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4.

AnalysisAI

An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and 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. An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4. Affected products include: Appsbd Best Support System.

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.