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Description
Impact
Via a request to an anonymously authenticated endpoint it's possible to retrieve information about the configured password requirements. The information available is limited but would perhaps give some additional detail useful for someone attempting to brute force derive a user's password.
The vulnerability can be found in the supported Umbraco versions 10 and 13. It was not exposed in Umbraco 7 or 8, nor in 14 or higher versions.
Patches
Patched in 10.8.11 and 13.9.2
Basic information
Type
reviewed
Severity
medium Advisory on GitHub
Open advisory ↗ Repository advisory
Open repository advisory ↗ Source code
Browse source ↗ Published (advisory)
2025-06-24 19:36:32 UTC
Updated
2025-06-28 00:06:30 UTC
GitHub reviewed
2025-06-24 19:36:32 UTC
NVD published
2025-06-24
EPSS Score
Score
Percentile
0.07%
20.30%
CVSS Scores
Base score
Version
Severity
Vector
5.3
3.1
—
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
CWEs
CWE id
Name
CWE-497
Exposure of Sensitive System Information to an Unauthorized Control Sphere
Affected packages (2)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
nuget
Umbraco.Cms >= 10.0.0, < 10.8.11
10.8.11
—
nuget
Umbraco.Cms >= 13.0.0, < 13.9.2
13.9.2
—
cvelogic
Threat Intelligence