CVE-2024-52520

Nextcloud Server's link reference provider can be tricked into downloading bigger files than intended

CVSS 5.7 MEDIUMEPSS 0.8%CWE-400 CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.7EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

15 Nov 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Nextcloud Server is a self hosted personal cloud system. Due to a pre-flighted HEAD request, the link reference provider could be tricked into downloading bigger websites than intended, to find open-graph data. It is recommended that the Nextcloud Server is upgraded to 28.0.10 or 29.0.7 and Nextcloud Enterprise Server is upgraded to 27.1.11.8, 28.0.10 or 29.0.7.

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

Affected products

nextcloud · security-advisories

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References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pxqf-cfxw-mqmj https://github.com/nextcloud/server/commit/873c42b0f1383d5b6f2b7a481e1d9620ed30f44a https://github.com/nextcloud/server/pull/47627