What is the CVSS score of CVE-2020-8951?

CVE-2020-8951 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: 0.6%.

Is there a public PoC exploit available for CVE-2020-8951?

Yes, a public proof-of-concept exploit is available for CVE-2020-8951. Prioritise patching immediately. EPSS: 0.6%.

Accurate Reconciliation CVE-2020-8951

MEDIUM

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

2020-02-26 cve@mitre.org

XSS Accurate Reconciliation

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

Feb 26, 2020 - 16:15 nvd

MEDIUM 5.4

DescriptionNVD

Fiserv Accurate Reconciliation 2.19.0, fixed in 3.0.0 or higher, allows XSS via the Source or Destination field of the Configuration Manager (Configuration Parameter Translation) page.

AnalysisAI

Fiserv Accurate Reconciliation 2.19.0, fixed in 3.0.0 or higher, allows XSS via the Source or Destination field of the Configuration Manager (Configuration Parameter Translation) page. 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. Fiserv Accurate Reconciliation 2.19.0, fixed in 3.0.0 or higher, allows XSS via the Source or Destination field of the Configuration Manager (Configuration Parameter Translation) page. Affected products include: Fiserv Accurate Reconciliation.

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.