Vulnerability · Published Oct 21, 2026 · Assigned by VulnCheck

CVE-2026-114398Trudesk through 1.2.11 Unrestricted File Upload via /settings/general/uploadlogo

Medium 5.4

In plain English

A medium-severity unrestricted file upload in trudesk from polonel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 81.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Trudesk through 1.2.11 contains an unrestricted file upload vulnerability that allows any authenticated user to place HTML or SVG files in the public webroot via the uploadlogo, uploadpagelogo and uploadfavicon endpoints. Attackers can spoof an image MIME type to upload script-bearing files served unauthenticated from /assets/, enabling stored cross-site scripting and replacement of instance branding.

Affected products (as reported)

Vendor	Product	Versions
polonel	trudesk	0 – through 1.2.11

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

References

https://hackmd.io/@leediay/multiple-vuln-trudesk-1211 third-party-advisory
https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/main.js#L612-L837 technical-description
https://github.com/polonel/trudesk/blob/v1.2.11/src/routes/index.js#L293-L295 technical-description
https://github.com/polonel/trudesk product
VulnCheck Advisory: Trudesk through 1.2.11 Unrestricted File Upload via /settings/general/uploadlogo third-party-advisory