CVE-2026-59188 Part-DB: SVG Sanitization Bypass via Extension Spoofing Leads to Stored XSS in Attachment Viewer
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-59188?
CVE-2026-59188 is a medium-severity vulnerability in Part-DB-server, published on 23 Oct 2026.
Official description
Part-DB is an open source inventory management system for electronic components. Prior to version 2.12.3, Part-DB-server sanitizes SVG files based solely on the user-controlled filename extension rather than actual file content type. An authenticated attacker can upload a malicious SVG with JavaScript payload using a non-SVG extension (e.g., .jpg), bypassing sanitization entirely. When any user views the attachment inline, the browser receives Content-Type: image/svg+xml and executes the embedded script in the Part-DB origin. This issue has been patched in version 2.12.3.
Which versions are affected by CVE-2026-59188?
How do I fix CVE-2026-59188?
No fix has been published for CVE-2026-59188 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-59188 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59188 exists.
Sources
Also known as GHSA-2vhp-c958-m47j.