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CVE Record

CVE-2024-5217: Incomplete Input Validation in GlideExpression Script

ServiceNow has addressed an input validation vulnerability that was identified in the Washington DC, Vancouver, and earlier Now Platform releases. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. The vulnerability is addressed in the listed patches and hot fixes below, which were released during the June 2024 patching cycle. If you have not done so already, we recommend applying security patches relevant to your instance as soon as possible.

CriticalCVSS 9.8Known exploitedUpdated
Glexia's TakeHuman reviewedcritical

Security readout for executives and security teams

Plain-English summary

CVE-2024-5217 is a critical ServiceNow Now Platform flaw that could let an unauthenticated remote attacker run code inside the platform. For executives, the key issue is business impact: a vulnerable internet-facing ServiceNow instance may expose sensitive workflows, data, and operational processes.

Executive priority

Treat this as urgent if ServiceNow supports customer, employee, IT, security, or operational workflows. KEV listing and critical unauthenticated RCE characteristics justify accelerated patch governance, executive tracking, and clear ownership until every instance is verified.

Technical view

ServiceNow describes incomplete input validation in GlideExpression Script affecting Washington DC, Vancouver, and earlier Now Platform releases. The CVSS 3.1 score is 9.8, with network access, low complexity, no privileges, and no user interaction required. The flaw maps to CWE-184.

Likely exposure

Organizations using ServiceNow Now Platform releases Washington DC, Vancouver, or earlier may be exposed if relevant June 2024 patches or hotfixes were not applied. The bundle does not provide exact vulnerable build numbers, so instance-level verification against ServiceNow guidance is required.

Exploitation context

Active exploitation is supported by CISA KEV inclusion and the cited Dark Reading report. The provided sources do not include exploit details, affected attack paths, or indicators, so validation should focus on patch status, exposure, and vendor-supported investigation guidance.

Researcher notes

The bundle confirms product, release families, severity, CWE, CVSS vector, vendor remediation cycle, and KEV status. It does not provide specific fixed versions, technical root-cause details beyond GlideExpression input validation, or safe detection logic. Avoid assuming broader ServiceNow products are affected.

Mitigation direction

  • Apply ServiceNow June 2024 security patches or relevant hotfixes for affected releases.
  • Prioritize internet-facing and production instances before lower-risk environments.
  • Use ServiceNow support guidance to confirm the exact fixed patch level.
  • Temporarily reduce external access where patching cannot be completed promptly.
  • Monitor ServiceNow advisories and CISA KEV tracking until remediation is complete.

Validation and detection

  • Inventory all ServiceNow Now Platform instances and record release family and patch level.
  • Confirm each instance against ServiceNow KB1648313 and KB1644293 guidance.
  • Check change records for June 2024 security patch or hotfix deployment.
  • Identify any internet-accessible instances that remain unpatched or unverified.
  • Review logs for suspicious unauthenticated activity using vendor-supported guidance.
Prepared
Reviewed
Confidence
high
Sources
6

Michael Williams reviewed this cited source version on .

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-184: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-5217 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
Yes
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CISA KEV status

Status
Known exploited
Source
CISA / ADP
Date added
Not provided

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2024-5217Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ServiceNowNow Platform0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-184 · source CWE mapping

Incomplete List of Disallowed Inputs

Incomplete List of Disallowed Inputs represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.