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.
Metrics
Affected Vendors & Products
References
History
Tue, 09 Dec 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:* |
Tue, 09 Dec 2025 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Nextcloud
Nextcloud contacts |
|
| Vendors & Products |
Nextcloud
Nextcloud contacts |
Mon, 08 Dec 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 05 Dec 2025 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and title field | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-12-05T17:50:59.860Z
Updated: 2025-12-08T19:51:03.328Z
Reserved: 2025-12-04T15:57:22.035Z
Link: CVE-2025-66554
Updated: 2025-12-08T19:50:57.903Z
Status : Analyzed
Published: 2025-12-05T18:15:58.630
Modified: 2025-12-09T17:01:51.250
Link: CVE-2025-66554
No data.