CVE-2025-47790
mediumpriority · track · 0EPSS 0.004 · 33 %ileDEEUUSEPSS · scored 2026-10-27
Nextcloud Server is a self hosted personal cloud system. Nextcloud Server prior to 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server prior to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9, and 31.0.3 have a bug with session handling. The bug caused skipping the second factor confirmation after a successful login with the username and password when the server was configured with `remember_login_cookie_lifetime` set to `0`, once the session expired on the page to select the second factor and the page is reloaded. Nextcloud Server 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server is upgraded to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9 and 31.0.3 contain a patch. As a workaround, set the `remember_login_cookie_lifetime` in config.php to a value other than `0`, e.g. `900`. Beware that this is only a workaround for new sessions created after the configuration change. System administration can delete affected sessions.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
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weaknesses
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affected products (68)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1082Nextcloud: Mehrere SchwachstellenDeutsch2025-05-15csaf · cert_bundDE
Ein entfernter authentisierter Angreifer oder ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in Nextcloud ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben, Daten zu manipulieren und einen Denial-of-Service-Zustand zu verursachen.
also known as (2)
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sources
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references (11)
External citations — patches, advisories, analysis.
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9h3w-f3h4-qqrhcnnvd
- https://github.com/nextcloud/server/pull/51905cnnvd
- https://hackerone.com/reports/2729367cnnvd
- https://nextcloud.com/install/#instructions-serverPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2025-47790cnnvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9h3w-f3h4-qqrhenisa_euvd
- https://github.com/nextcloud/server/pull/51905enisa_euvd
- https://hackerone.com/reports/2729367enisa_euvd
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