// For flags

CVE-2024-52520

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

Severity Score

5.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-11-11 CVE Reserved
  • 2024-11-15 CVE Published
  • 2024-11-15 CVE Updated
  • 2024-11-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nextcloud
Search vendor "Nextcloud"
 Security-advisories
Search vendor "Nextcloud" for product "Security-advisories"
 >= 28.0.0 < 28.0.10
Search vendor "Nextcloud" for product "Security-advisories" and version " >= 28.0.0 < 28.0.10"
en
Affected
Nextcloud
Search vendor "Nextcloud"
 Security-advisories
Search vendor "Nextcloud" for product "Security-advisories"
 >= 29.0.0 < 29.0.7
Search vendor "Nextcloud" for product "Security-advisories" and version " >= 29.0.0 < 29.0.7"
en
Affected