Researchers disclosed critical weaknesses in Salesforce Marketing Cloud (formerly ExactTarget) that could have allowed cross-tenant exposure of subscriber data, sent emails, SMS records, click tracking, and other marketing data. AMPScript and SSJS template-injection paths could query unrestricted Data Views, while legacy encrypted query strings used by email-view, Cloud Pages, and Forward-to-a-Friend features were vulnerable to CBC padding-oracle and obsolete XOR-based cryptographic attacks, enabling parameter decryption and forgery. Salesforce replaced the affected protection with AES-GCM, expired links generated before January 23, 2026, and disabled double evaluation of AMPScript in email subject lines; it said it found no confirmed unauthorized access or misuse tied to the issues.
Separate research documented how an exposed Uber testing endpoint for Salesforce ExactTarget previously let authenticated users submit arbitrary AMPScript through a preview function. The flaw permitted queries against Uber’s driver_partners data extension, returning driver UUIDs, join dates, email addresses, and first names, and allowed outbound HTTP GET requests through ExactTarget infrastructure. Assetnote reported that issue in November 2017, Uber remediated it within two days, and the report earned a total HackerOne bounty of $23,000.

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Salesforce completed remediation by deploying AES-GCM encryption, expiring links generated before January 23 at 21:00 UTC, and disabling double evaluation of AMPScript in email subject lines. Salesforce assigned CVE-2026-22585, CVE-2026-22586, CVE-2026-22582, CVE-2026-22583, and CVE-2026-2298, and stated it had not identified confirmed related customer-data misuse.
Researchers reported template-injection, encrypted query-string, and AMPScript double-evaluation weaknesses in Salesforce Marketing Cloud. The flaws could have allowed cross-tenant access to subscriber, email, SMS, and click-tracking data, as well as decryption or forgery of legacy email-view parameters.
Uber remediated the reported AMPScript-evaluation vulnerability. Uber and HackerOne ultimately paid a total $23,000 bounty for the report, including a $20,000 Hack the World bonus.
Assetnote reported that Uber's exposed exacttarget-web-hook.uber.com testing interface evaluated arbitrary Salesforce Marketing Cloud AMPScript for authenticated users. The issue enabled queries of the driver_partners data extension and outbound HTTP GET requests via ExactTarget infrastructure.
Salesforce acquired ExactTarget, the developer of AMPScript, in 2013.
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