CVE-2026-22582Network attack vector

Unauthenticated web services manipulation via URL argument injection

Published Jan 24, 2026 · Updated Jan 24, 2026

Argument injection in Salesforce Marketing Cloud Engagement before January 21, 2026 allows remote attackers to manipulate web services. The MicrositeURL() function accepts appended parameter-name and parameter-value pairs but fails to neutralize argument delimiters before producing an encrypted query string. No authentication or user interaction is required; Salesforce has not disclosed which protocol operations or customer data the manipulated request can reach.

CVSS severity9.8
Critical
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Argument injection in Salesforce Marketing Cloud Engagement before January 21, 2026 allows remote attackers to manipulate web services. The MicrositeURL() function accepts appended parameter-name and parameter-value pairs but fails to neutralize argument delimiters before producing an encrypted query string. No authentication or user interaction is required; Salesforce has not disclosed which protocol operations or customer data the manipulated request can reach.

The record

CVE
CVE-2026-22582
Published
Jan 24, 2026
Updated
Jan 24, 2026
Vendor
Salesforce
Product
Marketing Cloud Engagement
Classifications
CWE-88, CAPEC-278, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <January 21, 2026

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Salesforce · Marketing Cloud Engagementversion=0 <January 21, 2026

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CAPEC-278Web Services Protocol Manipulation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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