What is CVE-2023-4843?

CVE-2023-4843 is a medium-severity vulnerability in Pega Platform, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.3/10. Published 2023-09-08.

How severe is CVE-2023-4843?

Medium severity. CVSS v3 base score is 4.3 out of 10.

XSS in Pega Platform

CVE-2023-4843

Pega Platform versions 7.1 to 8.8.3 are affected by an HTML Injection issue with a name field utilized in Visual Business Director, however this field can only be modified by an authenticated administrative user.

Published 2023-09-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (26.1th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Pega Platform
Pegasystems Pega Platform — versions 7.1

Weakness classification (CWE)

References

support.pega.com/support-doc/pega-security-advisory-–-d23-vulnerability-remedia… (Vendor Advisory)

Frequently asked questions

What is CVE-2023-4843?: CVE-2023-4843 is a medium-severity vulnerability in Pega Platform, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.3/10. Published 2023-09-08.
How severe is CVE-2023-4843?: Medium severity. CVSS v3 base score is 4.3 out of 10.