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CVE-2026-48303 is an incorrect authorization vulnerability in Adobe Campaign Classic affecting version 7.4.3 build 9394 and earlier. The flaw allows an unauthenticated attacker to trigger arbitrary code execution over the network without user interaction. Adobe classifies the issue as incorrect authorization, indicating that security checks governing access to a privileged operation are improperly enforced or can be bypassed. Successful exploitation results in code execution in the context of the current user, with CVSS scope marked as changed, indicating impact beyond the initially vulnerable component.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
One of two maximum-severity Adobe Campaign Classic flaws enabling code execution or privilege escalation without user interaction.
An incorrect authorization vulnerability in Adobe Campaign Classic that can lead to arbitrary code execution in the context of the current user without requiring user interaction.
A critical incorrect authorization vulnerability in Adobe Campaign Classic that can lead to arbitrary code execution in the context of the current user without requiring user interaction.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.