Vulnerability · Published Nov 15, 2024 · Assigned by GitHub_M

CVE-2024-52520Nextcloud Server's link reference provider can be tricked into downloading bigger files than intended

Medium 5.7

In plain English

A medium-severity uncontrolled resource consumption in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)5.7Medium
Exploit odds (30 days)0.8%top 42.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
nextcloud security-advisories >= 28.0.0, < 28.0.10>= 29.0.0, < 29.0.7

Weakness: CWE-400, CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

References