Vulnerability record · CVE-2024-52518 · published 15 November 2024

CVE-2024-52518: Nextcloud server improper authentication vulnerability

Nextcloud · Nextcloud Server

Nextcloud Server is a self hosted personal cloud system. After an attacker got access to the session of a user or administrator, the attacker would be able to create, change or delete external storages without having to confirm the password. It is recommended that the Nextcloud Server is upgraded to 28.0.12, 29.0.9 or 30.0.2.

5.4 CVSS 3.1 Medium EPSS 0.54% · top 57.0% CWE-287 · Improper authenticationCWE-863 · Incorrect authorization

5.4CVSS 3.1 base score

0.54%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

5References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Nextcloud Server Nextcloud

References

Link	Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vrhf-532w-99rg	Vendor Advisory
https://github.com/nextcloud/server/pull/48373	Issue Tracking
https://github.com/nextcloud/server/pull/48788	Issue Tracking
https://github.com/nextcloud/server/pull/48992	Issue Tracking
https://hackerone.com/reports/2602973	Permissions Required

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-52518), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.