CVE-2025-49147Network attack vector

Password-policy disclosure via anonymous configuration endpoint

Published Jun 24, 2025 · Updated Jun 24, 2025

Information disclosure in Umbraco CMS 10.0.0 through 10.8.10 and 13.0.0 through 13.9.1 allows remote attackers to read password rules. AuthenticationController.GetPasswordConfig supplies anonymous requests to GetConfiguration instead of returning an empty dictionary. No credentials or user interaction are required; the disclosed rules can refine password-guessing attempts but do not reveal passwords or alter data.

CVSS severity5.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Umbraco CMS 10.0.0 through 10.8.10 and 13.0.0 through 13.9.1 allows remote attackers to read password rules. AuthenticationController.GetPasswordConfig supplies anonymous requests to GetConfiguration instead of returning an empty dictionary. No credentials or user interaction are required; the disclosed rules can refine password-guessing attempts but do not reveal passwords or alter data.

The record

CVE
CVE-2025-49147
Published
Jun 24, 2025
Updated
Jun 24, 2025
Vendor
Umbraco
Product
Umbraco CMS
Classifications
CWE-497
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=>= 10.0.0, < 10.8.111
  2. Affected versionversion=>= 13.0.0, < 13.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Umbraco · Umbraco CMSversion=>= 10.0.0, < 10.8.111; version=>= 13.0.0, < 13.9.2

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-497Exposure of Sensitive System Information to an Unauthorized Control Sphere

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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