CVE-2024-4879: ServiceNow Improper Input Validation Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 29 Jul 2024, 19 days after the CVE record was published.

How likely is exploitation in the next 30 days?

100%

EPSS score, percentile 100 of all scored records

How severe?

9.3 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA deadline 19 Aug 2024. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• before Utah Patch 10 Hot Fix 3
• before Utah Patch 10a Hot Fix 2
• before Vancouver Patch 6 Hot Fix 2
• before Vancouver Patch 7 Hot Fix 3b
• before Vancouver Patch 8 Hot Fix 4
• before Vancouver Patch 9

and 5 more in the table below

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 19 August 2024.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

• https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1645154
• https://nvd.nist.gov/vuln/detail/CVE-2024-4879

Affected products and versions

As listed in the CVE record.

Versions not listed are: unaffected.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

ServiceNow Utah, Vancouver, and Washington DC Now Platform releases contain a jelly template injection vulnerability in UI macros. An unauthenticated user could exploit this vulnerability to execute code remotely.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2024-4879 to its Known Exploited Vulnerabilities (KEV) catalog on 29 Jul 2024.
• CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
• The due date CISA sets for the required action is 19 Aug 2024.
• The CVE record was published on 10 Jul 2024, 19 days before it was added to KEV.
• The CVE record carries a CVSS v4.0 base score of 9.3 (Critical), given by its CNA.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 100% (percentile 100), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Jelly Template Injection Vulnerability in ServiceNow UI Macros

ServiceNow has addressed an input validation vulnerability that was identified in Vancouver and Washington DC Now Platform releases. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. ServiceNow applied an update to hosted instances, and ServiceNow released the update to our partners and self-hosted customers. Listed below are the patches and hot fixes that address the vulnerability. If you have not done so already, we recommend applying security patches relevant to your instance as soon as possible.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-1287: Improper Validation of Specified Type of Input

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

References

• support.servicenow.com
• support.servicenow.com
• darkreading.com

More exploited ServiceNow vulnerabilities

• CVE-2024-5217: ServiceNow Incomplete List of Disallowed Inputs Vulnerability (added 29 Jul 2024)