Adobe released security bulletin APSB26-120 to fix multiple critical vulnerabilities in Adobe Campaign Classic v7 affecting 7.4.3 build 9398 and earlier on Windows and Linux, and urged customers to upgrade to build 9399. The patched issues include CVE-2026-48323 (template engine injection), CVE-2026-48330 and CVE-2026-48326 (SQL injection), CVE-2026-48317 (eval injection), CVE-2026-48331 (server-side request forgery), and CVE-2026-48333 (incorrect authorization), with several flaws enabling arbitrary code execution or privilege escalation. Adobe said the most severe bugs, including CVE-2026-48331, CVE-2026-48323, and CVE-2026-48330, are rated CVSS 10.0 and can be exploited remotely without authentication or user interaction.
Adobe said it is not aware of in-the-wild exploitation, but warned that internet-facing and externally accessible deployments should be remediated quickly. The bulletin applies to on-premise and hybrid deployments, while Adobe-hosted instances were already remediated by Adobe. The Canadian Centre for Cyber Security separately issued advisory AV26-776, directing administrators to review Adobe’s bulletins and apply updates for affected products, including Adobe Campaign Classic.

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The Canadian Centre for Cyber Security published advisory AV26-776 warning that Adobe products, including Adobe Campaign Classic, were affected by vulnerabilities as of August 3, 2026. The notice directed users and administrators to review Adobe bulletins and apply updates.
Adobe published security bulletin APSB26-120 and issued a critical security update for Adobe Campaign Classic on Windows and Linux. The bulletin covers multiple flaws affecting build 9398 and earlier, recommends upgrading to build 9399, and states Adobe is not aware of in-the-wild exploitation.
Several Adobe Campaign Classic vulnerabilities, including CVE-2026-48323, CVE-2026-48326, CVE-2026-48331, CVE-2026-48333, and CVE-2026-48317, were recorded as received by psirt@adobe.com. The issues include template engine injection, SQL injection, SSRF, incorrect authorization, and eval injection flaws affecting ACC v7 through 7.4.3 build 9398.
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