ServiceNow CVE-2019-20768
ServiceNow Cross-Site Scripting
Unverified. The per-release patch levels below are an auto-import (NVD + GitHub Advisory Database) and have not yet been confirmed against the login-gated ServiceNow KB. The exposure check returns NEEDS REVIEW for this advisory — review the references and your current patch level.
Risk & exploitation
EPSS (FIRST) estimates a low likelihood of exploitation in the next 30 days (2026-06-10). Priority blends CVSS, EPSS, KEV and public-exploit availability — operational prioritization, not a NIS2/DORA reporting determination.
Summary
ServiceNow IT Service Management Kingston through Patch 14-1, London through Patch 7, and Madrid before patch 4 allow stored XSS via crafted sysparm_item_guid and sys_id parameters in an Incident Request to service_catalog.do.
Auto-generated stub from NVD. Detection signals and per-release fixed-in are pending manual authoring/verification; until a signal carries a verified match, the exposure check returns DORMANT/INVESTIGATE — never a false EXERCISED.Affected releases & fixed-in
| Release | Fixed in |
|---|---|
| Kingston | TODO: verify — login-gated ServiceNow KB |
| London | TODO: verify — login-gated ServiceNow KB |
| Madrid | TODO: verify — login-gated ServiceNow KB |
Source & attribution
GHSA GHSA-pw7g-7762-p5qw + NVD https://nvd.nist.gov/vuln/detail/CVE-2019-20768 (auto-synced 2026-06-08); CVSS/CWE/KEV/references from the GitHub Advisory Database (CC-BY 4.0). GHSA carries no version data — per-release fixed-in is the NVD-CPE hint or TODO: verify on the login-gated support.servicenow.com KB.
References
Data: GitHub Advisory Database (CC-BY 4.0), NVD, the CISA KEV catalog, FIRST EPSS, Exploit-DB, and Nuclei templates.