CVE-2025-66554
3.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nextcloud | security-advisories | >= 7.0.0-alpha.1, < 7.2.5 | affected |
| nextcloud | security-advisories | >= 6.0.0-alpha1, < 6.0.6 | affected |
| nextcloud | security-advisories | < 5.5.4 | affected |
Weaknesses
- CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9v78-cpfc-v6h2
- https://github.com/nextcloud/contacts/pull/4619
- https://github.com/nextcloud/contacts/commit/d954d098978dde1f121600e8b994e02f293c68b1
- https://hackerone.com/reports/3293290
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