Cyber Resilience

CVE-2026-2298

Critical

Published: 23 March 2026

Published
23 March 2026
Modified
24 March 2026
KEV Added
—
Patch
—
CVSS Score v3.1 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS Score 0.0041 32.9th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-2298 is a critical-severity Argument Injection (CWE-88) vulnerability in Salesforce Marketing Cloud (inferred from references). Its CVSS base score is 9.4 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-2298 is an Improper Neutralization of Argument Delimiters in a Command, classified as Argument Injection (CWE-88), affecting Salesforce Marketing Cloud Engagement. The vulnerability enables Web Services Protocol Manipulation and impacts versions of Marketing Cloud Engagement prior to January 30th, 2026. It was published on 2026-03-23 and carries a CVSS v3.1 base score of 9.4 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L).

The vulnerability can be exploited by unauthenticated attackers over the network with low attack complexity and no user interaction required. Successful exploitation grants high-impact access to confidential data and allows significant integrity violations, such as command alteration, with a low impact on availability and no scope change.

Salesforce provides mitigation guidance in their security advisory at https://help.salesforce.com/s/articleView?id=005299346&type=1.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Salesforce Marketing Cloud Engagement allows Web Services Protocol Manipulation. This issue affects Marketing Cloud Engagement: before January 30th, 2026.

CWE(s)
CWE-88

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Argument injection in public-facing Salesforce Marketing Cloud web service directly enables remote unauthenticated exploitation of the application.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-44193Shared CWE-88
CVE-2026-22582Shared CWE-88
CVE-2026-26194Shared CWE-88
CVE-2024-47516Shared CWE-88
CVE-2026-44449Shared CWE-88
CVE-2026-24126Shared CWE-88
CVE-2026-27613Shared CWE-88
CVE-2026-26514Shared CWE-88
CVE-2025-21613Shared CWE-88
CVE-2026-45158Shared CWE-88

Affected Assets

Salesforce
Marketing Cloud
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly remediates the specific argument injection flaw in Salesforce Marketing Cloud Engagement by applying the vendor patch before January 30th, 2026.

SI-10 Information Input Validation good match
prevent

Prevents argument injection by validating and neutralizing argument delimiters in web services inputs to the Marketing Cloud Engagement system.

SI-9 Information Input Restrictions good match
prevent

Restricts web services inputs to exclude or limit argument delimiters, blocking injection attempts in Marketing Cloud Engagement.

References