Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page.
Metrics
Affected Vendors & Products
References
History
Fri, 05 Dec 2025 21:00:00 +0000
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Nextcloud
Nextcloud nextcloud Nextcloud nextcloud Enterprise Server Nextcloud nextcloud Server Nextcloud server |
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| Vendors & Products |
Nextcloud
Nextcloud nextcloud Nextcloud nextcloud Enterprise Server Nextcloud nextcloud Server Nextcloud server |
Fri, 05 Dec 2025 20:15:00 +0000
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| Metrics |
ssvc
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Fri, 05 Dec 2025 16:30:00 +0000
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| Description | Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page. | |
| Title | Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud | |
| Weaknesses | CWE-80 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-12-05T16:22:50.206Z
Updated: 2025-12-05T20:05:05.069Z
Reserved: 2025-12-03T15:28:02.992Z
Link: CVE-2025-66512
Updated: 2025-12-05T20:04:56.889Z
Status : Received
Published: 2025-12-05T17:16:04.980
Modified: 2025-12-05T17:16:04.980
Link: CVE-2025-66512
No data.
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