Adobe Security Bulletin
Last updated on Jun 11, 2026
Security updates available for Adobe Campaign Classic | APSB26-66
Summary
Adobe has released security updates for Adobe Campaign Classic. This update addresses critical vulnerabilities that could result in arbitrary code execution.
Affected versions
Solution
Adobe categorizes these updates with the following priority rating and recommends users update their installation to the newest version:
Note
This security advisory applies to on-premise Adobe Campaign instances only, including fully on-premise deployments and on-premise components in hybrid deployments. No action is required for Adobe-hosted instances; those environments have already been remediated.
Vulnerability Details
Acknowledgments
Adobe would like to thank the following researchers for reporting this issue and for working with Adobe to help protect our customers.
- Jamie Parfet - CVE-2026-48303
NOTE: Adobe has a public bug bounty program with HackerOne. If you are interested in working with Adobe as an external security researcher, please check us out here: https://hackerone.com/adobe.
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com
