What is CVE-2025-53839?

CVE-2025-53839 is a medium-severity vulnerability in Dracoon Security-Advisories, classified under Cross-site Scripting. CVSS score: 4.0/10. Published 2025-07-15.

How severe is CVE-2025-53839?

Medium severity. CVSS v3 base score is 4.0 out of 10.

XSS in Dracoon Security-Advisories

CVE-2025-53839

DRACOON is a file sharing service, and the DRACOON Branding Service allows customers to customize their DRACOON interface with their brand. Versions of the DRACOON Branding Service prior to 2.10.0 are vulnerable to cross-site scripting. Improper neutralization of input from administrative users could inject HTML code into the workflow for newly onboarded users. A fix was made available in version 2.10.0 and rolled out to the DRACOON service. DRACOON customers do not need to take action.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Dracoon Security-advisories — versions < 2.10.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-53839?: CVE-2025-53839 is a medium-severity vulnerability in Dracoon Security-Advisories, classified under Cross-site Scripting. CVSS score: 4.0/10. Published 2025-07-15.
How severe is CVE-2025-53839?: Medium severity. CVSS v3 base score is 4.0 out of 10.