CVE-2026-104350: Adobe Campaign Classic (Critical, CVSS 9.3)

Remote Attacker
CVE-2026-104350CriticalAdobe Campaign Classic
CVSS
9.3 Critical (v3.1)
EPSS
0.6% chance of exploitation in the next 30 days (higher than 48.8% of CVEs)
Exploited in the wild
Not on CISA’s KEV list
Public exploit
None reported in public exploit databases
Weakness
CWE-79
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Published
Oct 27, 2026

What it is

Adobe Campaign Classic (ACC) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Description from the National Vulnerability Database.

What to do

Check whether you run Adobe Campaign Classic, then apply the vendor’s fix or mitigation from the advisories below.

Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.