Adobe Campaign Classic: Reflected Cross-Site Scripting
Summary
Adobe Campaign Classic (ACC) 7.4.4 build 9402 and earlier contains a reflected Cross-Site Scripting vulnerability (CWE-79), rated critical with CVSS 9.3. An attacker can inject malicious scripts into a web page, which may lead to privilege escalation or control over the victim's account or session. Exploitation requires the victim to visit a crafted URL or interact with a compromised web page, and the scope is changed.
Affected
- Adobe Campaign Classic ACC v7: 7.4.4 build 9402 and earlier (Windows, Linux)
Fixed in
- Adobe Campaign Classic ACC v7: 7.4.4 build 9403
Workaround
Unknown. No vendor workaround is documented; apply the vendor update.
Exploitation
- Adobe is not aware of any exploits in the wild.
- No public proof-of-concept exploit has been confirmed; this does not prove none exists.
- Not known to be exploited (OffSeq).
Our recommendation
- Identify on-premise ACC 7.x instances and check whether they run 7.4.4 build 9402 or earlier.
- Update to 7.4.4 build 9403 (Adobe priority 2), together with the other fixes in APSB26-162.
- Until patched, restrict access to the ACC web interface to trusted networks or VPN.
- Warn staff not to click unsolicited links to ACC URLs.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-162 www.adobe.com
- The Hacker News: Adobe fixes 8 critical Campaign Classic flaws thehackernews.com
- OffSeq Radar: CVE-2026-104350 radar.offseq.com
- CVE.threatint.com: CVE-2026-104350 cve.threatint.com
- Mallory: Adobe Campaign Classic advisory mallory.ai
- SecurityOnline: Adobe Campaign Classic vulnerabilities securityonline.info
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 00:34.
Original description (NVD)
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.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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