Unauthenticated code execution via incomplete expression denylist
Published Jul 10, 2024 · Updated Oct 21, 2025
Incomplete input validation in ServiceNow Now Platform allows remote attackers to execute code through crafted GlideExpression input. GlideExpression checks supplied expressions against an incomplete denylist, allowing prohibited script content to reach evaluation. No authentication or user interaction is required; successful network requests execute with platform privileges and can expose or alter instance data.
Summary
What happened
Incomplete input validation in ServiceNow Now Platform allows remote attackers to execute code through crafted GlideExpression input. GlideExpression checks supplied expressions against an incomplete denylist, allowing prohibited script content to reach evaluation. No authentication or user interaction is required; successful network requests execute with platform privileges and can expose or alter instance data.
The record
- CVE
- CVE-2024-5217
- Published
- Jul 10, 2024
- Updated
- Oct 21, 2025
- Vendor
- ServiceNow
- Product
- ServiceNow AI Platform
- Classifications
- CWE-184, CWE-697, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 10, 2024CVE publishedPublication date reported by the CVE source.
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <utah_patch_10a_hot_fix_2
- Affected versionversion=0 <utah_patch_10b_hot_fix_1
- Affected versionversion=0 <utah_patch_10_hot_fix_3
- Affected versionversion=0 <vancouver_patch_10
- Affected versionversion=0 <vancouver_patch_6_hot_fix_2
- Affected versionversion=0 <vancouver_patch_7_hot_fix_3b
- Affected versionversion=0 <vancouver_patch_8_hot_fix_4
- Affected versionversion=0 <vancouver_patch_9_hot_fix_1
- Affected versionversion=0 <washington_dc_patch_1_hot_fix_3b
- Affected versionversion=0 <washington_dc_patch_2_hot_fix_2
- Affected versionversion=0 <washington_dc_patch_3_hot_fix_2
- Affected versionversion=0 <washington_dc_patch_4
- Affected versionversion=0 <washington_dc_patch_5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Assetnote ServiceNow exploit-chain proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities catalog listingknown exploited catalog
Technologies
Your stack
See the directory against your own environment.
Your stack
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