TI-2026-13347 Aliases CVE-2026-15933 GHSA-932v-hwxh-w7jw

Cleartext Storage of Sensitive Credentials in OptimiDoc Server (On-Premise)

LOW 31CWE-256Published 2026-09-03 · Updated 2026-09-03

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-256.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00543 45th percentileScored 2026-11-07

Fix Fixed OptimiDoc Server (OptimiDoc): 26.08

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
OptimiDoc	OptimiDoc Server	before 26.08	26.08	Patch available	CNA

OptimiDoc Server VendorOptimiDoc Affected before 26.08 Fixed in 26.08 Patch available CNA

Remediation

Fix · CNA OptimiDoc Server (OptimiDoc) Fixed in 26.08

Timeline

2026-10-02 Threatist record created from CVE-2026-15933
2026-10-03 Alias added: GHSA-932v-hwxh-w7jw

References

Advisory 1

https://cert.pl/en/posts/2026/09/CVE-2026-15933

Other 1

https://optimidoc.com/category/optimidoc-server/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences