What’s Vulnerable › Vulnerabilities

CVE-2023-25817: Delete permissions are not saved when creating public share in Nextcloud server

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-27 · updated 2026-06-17
• Weakness: CWE-281

Description

Nextcloud server is an open source, personal cloud implementation. In versions from 24.0.0 and before 24.0.9 a user could escalate their permissions to delete files they were not supposed to deletable but only viewed or downloaded. This issue has been addressed andit is recommended that the Nextcloud Server is upgraded to 24.0.9. There are no known workarounds for this vulnerability.

Affected products

• Nextcloud Server: from 24.0.0 before 24.0.9 — fixed in 24.0.9

How to fix

Upgrade to a fixed version: Nextcloud Server 24.0.9. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8v5c-f752-fgpv
• https://github.com/nextcloud/server/pull/33941
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8v5c-f752-fgpv
• https://github.com/nextcloud/server/pull/33941

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