What is CVE-2020-8775?

CVE-2020-8775 is a high-severity vulnerability in Pega Platform, classified under Cross-site Scripting. CVSS score: 8.9/10. Published 2020-04-29.

How severe is CVE-2020-8775?

High severity. CVSS v3 base score is 8.9 out of 10.

XSS in Pega Platform

CVE-2020-8775

Pega Platform before version 8.2.6 is affected by a Stored Cross-Site Scripting (XSS) vulnerability in the comment tags.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-04-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.9 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.008 (57.5th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Pega Platform

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.pega.com/products/pega-platform (Product)
community.pega.com/knowledgebase/products/platform/resolved-issues (Vendor Advisory)

Frequently asked questions

What is CVE-2020-8775?: CVE-2020-8775 is a high-severity vulnerability in Pega Platform, classified under Cross-site Scripting. CVSS score: 8.9/10. Published 2020-04-29.
How severe is CVE-2020-8775?: High severity. CVSS v3 base score is 8.9 out of 10.