CVE-2025-53839Network attack vector

Cross-site scripting via unneutralized administrative input

Published Jul 14, 2025 · Updated Jul 15, 2025

Cross-site scripting in DRACOON Branding Service before 2.10.0 allows remote authenticated users to inject HTML into onboarding workflows. The service fails to neutralize branding input supplied by administrative users before placing it in the workflow shown to newly onboarded users. Exploitation requires administrative privileges and user interaction, and it can expose or alter data in another user's browser without affecting service availability.

CVSS severity4.0
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in DRACOON Branding Service before 2.10.0 allows remote authenticated users to inject HTML into onboarding workflows. The service fails to neutralize branding input supplied by administrative users before placing it in the workflow shown to newly onboarded users. Exploitation requires administrative privileges and user interaction, and it can expose or alter data in another user's browser without affecting service availability.

The record

CVE
CVE-2025-53839
Published
Jul 14, 2025
Updated
Jul 15, 2025
Vendor
DRACOON GmbH
Product
Security Advisories
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

DRACOON GmbH · Security Advisoriesversion=< 2.10.0

Published CVSS scores

4.0GitHub Security AdvisoriesCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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