3.5Low
CVE-2025-66554Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and title field
Description
Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. Prior to 5.5.4, 6.0.6, and 7.2.5, a malicious user was able to modify their organisation and title field to load additional CSS files. Javascript and other options were correctly blocked by the content security policy of the Nextcloud Server code. This vulnerability is fixed in 5.5.4, 6.0.6, and 7.2.5.
Weakness (CWE):
CWE-79
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| nextcloud | contacts | 5.0.0 – < 5.5.4 | |
| nextcloud | security-advisories | >= 7.0.0-alpha.1, < 7.2.5, >= 6.0.0-alpha1, < 6.0.6, < 5.5.4 |
References and patches
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9v78-cpfc-v6h2 PatchVendor Advisory
- https://github.com/nextcloud/contacts/pull/4619 Issue TrackingPatch
- https://github.com/nextcloud/contacts/commit/d954d098978dde1f121600e8b994e02f293c68b1 Patch
- https://hackerone.com/reports/3293290 Vendor Advisory
CPE matches (NVD) (3)
cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:*≥ 5.0.0 < 5.5.4cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:*≥ 6.0.0 < 6.0.6cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:*≥ 7.0.0 < 7.2.5