CVE-2024-52523

Nextcloud Server Custom defined credentials of external storages are sent back to the frontend

MEDIUM
6.5
CVSS Score
Published: November 15, 2024 at 04:35 PM UTC
Updated: June 17, 2026 at 08:07 AM UTC
1 product affected across 1 vendorNextcloud/server

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

Nextcloud Server is a self hosted personal cloud system. After setting up a user or administrator defined external storage with fixed credentials, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active session of a user. It is recommended that the Nextcloud Server is upgraded to 28.0.12, 29.0.9 or 30.0.2 and Nextcloud Enterprise Server is upgraded to 25.0.13.14, 26.0.13.10, 27.1.11.10, 28.0.12, 29.0.9 or 30.0.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

25.0.0 ≤ v < 25.0.13.1426.0.0 ≤ v < 26.0.13.1027.0.0 ≤ v < 27.1.11.1028.0.0 ≤ v < 28.0.1229.0.0 ≤ v < 29.0.930.0.0 ≤ v < 30.0.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200CWE-125

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