Vulnerability · Published Jun 23, 2023 · Assigned by GitHub_M

CVE-2023-35171Nextcloud Server vulnerable to open redirect on "Unsupported browser" warning

Medium 4.1

In plain English

A medium-severity open redirect in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)4.1Medium

Exploit odds (30 days)0.6%top 51.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker's site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 26.0.0, < 26.0.2

Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4 x_refsource_CONFIRM
https://github.com/nextcloud/server/pull/38194 x_refsource_MISC
https://hackerone.com/reports/1977222 x_refsource_MISC