CVE-2026-15933 Cleartext Storage of Sensitive Credentials in OptimiDoc Server (On-Premise)
An authenticated administrator can view cleartext credentials for external services like SMTP and Active Directory in the web administration panel source code.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15933?
CVE-2026-15933 is a medium-severity vulnerability in OptimiDoc Server, published on 3 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
OptimiDoc Server (On-Premise) stores credentials for external services in cleartext. An authenticated administrator can view previously configured service passwords, including SMTP, FTP (for scan delivery), Active Directory (for user list import), and SharePoint credentials, in cleartext via the web administration panel page source, allowing exposure of sensitive third-party authentication data.
This issue was fixed in version 26.08
Weakness: CWE-256
Which versions are affected by CVE-2026-15933?
How do I fix CVE-2026-15933?
No fix has been published for CVE-2026-15933 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15933 being exploited?
There is no known exploitation of CVE-2026-15933 in the wild and no public exploit code.
Sources
Also known as GHSA-932v-hwxh-w7jw.