What is CVE-2026-1564?

CVE-2026-1564 is a medium-severity vulnerability in Pega Pega_platform, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 4.8/10. Published 2026-04-15.

How severe is CVE-2026-1564?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Pega Pega_platform

CVE-2026-1564

Pega Platform versions 8.1.0 through 25.1.1 are affected by an HTML Injection vulnerability in a user interface component. Requires a high privileged user with a developer role.

EPSS: 0.002 (8.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Pega Pega_platform
Pegasystems Pega Infinity — versions 8.1.0

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

security@pega.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-1564?: CVE-2026-1564 is a medium-severity vulnerability in Pega Pega_platform, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 4.8/10. Published 2026-04-15.
How severe is CVE-2026-1564?: Medium severity. CVSS v3 base score is 4.8 out of 10.