PT-2020-20390 · Fiserv · Fiserv Accurate Reconciliation

Artem Brunov · Published 2020-02-26 · Updated 2022-01-01 · CVE-2020-8952

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Fiserv Accurate Reconciliation versions prior to 3.0.0

Description The issue allows for cross-site scripting (XSS) attacks via the timeOut parameter in the logout.jsp endpoint. This could potentially lead to malicious script execution on the client-side.

Recommendations For versions prior to 3.0.0, update to version 3.0.0 or higher to resolve the issue. As a temporary workaround, consider restricting access to the logout.jsp endpoint or avoiding the use of the timeOut parameter until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-8952

Affected Products

Fiserv Accurate Reconciliation

References · 3

• 🔥 https://github.com/eSecure-CVEs/CVEs/blob/master/CVE-2020-8952 · Exploit
• https://osv.dev/vulnerability/CVE-2020-8952 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8952 · Security Note