CVE-2025-66554 is a cross-site scripting (XSS) vulnerability affecting the Nextcloud Contacts app prior to versions 5.5.4, 6.0.6, and 7.2.5. A low-privileged attacker could inject malicious CSS by manipulating their organization and title fields, potentially leading to information disclosure or limited integrity impact. Rated as Medium severity (CVSS 5.4), this vulnerability requires user interaction and a network attack vector. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.0.0, < 5.5.4CPE matchmatch criteria | cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:* | ||
>= 6.0.0, < 6.0.6CPE matchmatch criteria | cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:* | ||
>= 7.0.0, < 7.2.5CPE matchmatch criteria | cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
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