What is the CVSS score of CVE-2021-20484?

CVE-2021-20484 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: 0.5%.

Is there a patch available for CVE-2021-20484?

Yes, a patch is available for CVE-2021-20484. Update the affected software to the latest version immediately.

Sterling File Gateway CVE-2021-20484

MEDIUM

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

2021-09-23 psirt@us.ibm.com

IBM XSS Sterling File Gateway

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 23, 2021 - 17:15 nvd

MEDIUM 5.4

DescriptionNVD

IBM Sterling File Gateway 2.2.0.0 through 6.1.0.3 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 197666.

AnalysisAI

IBM Sterling File Gateway 2.2.0.0 through 6.1.0.3 is vulnerable to cross-site scripting. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

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. IBM Sterling File Gateway 2.2.0.0 through 6.1.0.3 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 197666. Affected products include: Ibm Sterling File Gateway. Version information: through 6.1.0.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.