What’s Vulnerable › Vulnerabilities

CVE-2020-23957

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-12-15 · updated 2026-06-17
• Weakness: CWE-79

Description

Pega Platform through 8.4.x is affected by Cross Site Scripting (XSS) via the ConnectionID parameter, as demonstrated by a pyActivity=Data-TRACERSettings.pzStartTracerSession request to a PRAuth URI.

Affected products

• Pegasystems Pega Infinity: from 8.4 through 8.4.2

References

• https://jayaramyalla.medium.com/cross-site-scripting-in-pega-cve-2020-23957-16d1c417da5f
• https://jayaramyalla.medium.com/cross-site-scripting-in-pega-cve-2020-23957-16d1c417da5f

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