What is CVE-2022-42704?

CVE-2022-42704 is a medium-severity vulnerability in Servicenow, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-01-13.

How severe is CVE-2022-42704?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Servicenow

CVE-2022-42704

A cross-site scripting (XSS) vulnerability in Employee Service Center (esc) and Service Portal (sp) in ServiceNow Quebec, Rome, and San Diego allows remote attackers to inject arbitrary web script via the Standard Ticket Conversations widget.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-01-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Servicenow — versions quebec, rome, san_diego

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

support.servicenow.com/kb (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-42704?: CVE-2022-42704 is a medium-severity vulnerability in Servicenow, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-01-13.
How severe is CVE-2022-42704?: Medium severity. CVSS v3 base score is 5.4 out of 10.