Vulnerability · Published Oct 23, 2026 · Assigned by GitHub_M

CVE-2026-59188Part-DB: SVG Sanitization Bypass via Extension Spoofing Leads to Stored XSS in Attachment Viewer

Medium 5.4

In plain English

A medium-severity cross-site scripting in Part-DB-server from Part-DB. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.1%top 95.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Part-DB	Part-DB-server	< 2.12.3

Weakness: CWE-79, CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-2vhp-c958-m47j x_refsource_CONFIRM
https://github.com/Part-DB/Part-DB-server/releases/tag/v2.12.3 x_refsource_MISC