Improper input validation in Nextcloud Contacts
CVE-2023-33182
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
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Nextcloud Contacts
- Nextcloud Security-Advisories — versions >= 4.1.0, < 4.2.4, >= 5.0.0, < 5.0.3
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-hxr6-cx85-gcjx (Vendor Advisory)
- github.com/nextcloud/contacts/pull/3199 (Patch)
- hackerone.com/reports/1789602 (Permissions Required)