// For flags

CVE-2023-33182

Nextcloud Contacts photos only sanitized if mime type is all lower case

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. The unsanitized SVG is converted to a JavaScript blob (in memory data) that the Avatar can't render. Due to this constellation the missing sanitization does not seem to be exploitable. It is recommended that the Contacts app is upgraded to 5.0.3 or 4.2.4

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-05-17 CVE Reserved
  • 2023-05-30 CVE Published
  • 2024-06-05 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
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"
 Contacts
Search vendor "Nextcloud" for product "Contacts"
 >= 4.1.0 < 4.2.4
Search vendor "Nextcloud" for product "Contacts" and version " >= 4.1.0 < 4.2.4"
-
Affected
Nextcloud
Search vendor "Nextcloud"
 Contacts
Search vendor "Nextcloud" for product "Contacts"
 >= 5.0.0 < 5.0.3
Search vendor "Nextcloud" for product "Contacts" and version " >= 5.0.0 < 5.0.3"
-
Affected