Adobe Experience Manager: Security feature bypass due to improper input validation
Summary
Adobe Experience Manager 6.5, 6.5 LTS and Cloud Service in earlier builds are affected by an improper input validation flaw (CWE-20). An attacker with low privileges can bypass a security feature and gain unauthorized, limited read and write access. No user interaction is required, so the attack is possible over the network if an affected instance is reachable.
Affected
- Adobe Experience Manager Cloud Service: 2026.10.29023 and earlier
- Adobe Experience Manager 6.5: up to 6.5.25 (CVE record); Service Pack 25 and earlier (bulletin)
- Adobe Experience Manager 6.5 LTS: Service Pack 3 and earlier (bulletin)
Fixed in
- Cloud Service: 2026.10.29251
- 6.5: Service Pack 25 with Cumulative Hotfix for GRANITE-75398 (marked unaffected in the CVE record)
- 6.5 LTS: Unknown. The bulletin's solution table marks 6.5 and 6.5 LTS as not affected, which conflicts with its affected table. Confirm with Adobe.
Workaround
Unknown. No vendor workaround is documented beyond applying the fix or hotfix.
Exploitation
- Adobe is not aware of any exploits in the wild.
- Not listed in CISA KEV. EPSS score 0.00472.
- No public proof-of-concept found as of 10 Nov 2026.
Our recommendation
- Inventory all AEM instances and determine whether they run Cloud Service, 6.5 or 6.5 LTS.
- Prioritise internet-facing instances and apply the Cloud Service update or the 6.5 hotfix or service pack.
- For 6.5 LTS, obtain the exact fixed version from Adobe support before relying on it.
- Restrict access to author and publish instances and review accounts with low privileges.
- Review logs for unexpected read or write activity.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-189 www.adobe.com
- CVE Record CVE-2026-118482 www.cve.org
- OpenCVE CVE-2026-118482 app.opencve.io
- OffSeq Radar CVE-2026-118482 radar.offseq.com
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 11 Nov 2026, 17:18.
Original description (NVD)
Adobe Experience Manager is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. A low-privileged attacker could leverage this vulnerability to bypass security measures and gain unauthorized limited read and write access. Exploitation of this issue does not require user interaction.
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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