MEDIUM
Nextcloud Contacts vulnerable to Stored XSS in contacts app via organisation and title field
Published Dec 5, 2025
5.4
MEDIUMCVSS 3.1
EPSS 0.25%
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.
Affected products
-
- Version < 5.5.4StatusaffectedConstraints-
- Version >= 6.0.0-alpha1, < 6.0.6StatusaffectedConstraints-
- Version >= 7.0.0-alpha.1, < 7.2.5StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nextcloud | Security-Advisories | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-201461 Advisory
- https://github.com/nextcloud/contacts/commit/d954d098978dde1f121600e8b994e02f293c68b1 x_refsource_MISCPatch
- https://github.com/nextcloud/contacts/pull/4619 x_refsource_MISCIssue TrackingPatch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9v78-cpfc-v6h2 x_refsource_CONFIRMPatchVendor Advisory
- https://hackerone.com/reports/3293290 x_refsource_MISCPermissions RequiredVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-201461 | Advisory | |
| https://github.com/nextcloud/contacts/commit/d954d098978dde1f121600e8b994e02f293c68b1 | x_refsource_MISCPatch | |
| https://github.com/nextcloud/contacts/pull/4619 | x_refsource_MISCIssue TrackingPatch | |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9v78-cpfc-v6h2 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://hackerone.com/reports/3293290 | x_refsource_MISCPermissions RequiredVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner GitHub_M
Published Dec 5, 2025
Updated Dec 8, 2025
Reserved Dec 4, 2025
Link CVE-2025-66554
CISA Vulnrichment
Updated Dec 8, 2025
ENISA EUVD
EUVD-2025-201461 Assigner GitHub_M
Published Dec 5, 2025
Updated Dec 8, 2025
Exploited since n/a
Link EUVD-2025-201461