CVE-2023-35171

Name: CVE-2023-35171
Creator: NVD / NIST
Published: 2023-06-23T21:15:09.703+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2023-35171 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.59%

43.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	>= 26.0.0, < 26.0.2

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4Exploit, Issue Tracking, Vendor Advisory
https://github.com/nextcloud/server/pull/38194Issue Tracking, Patch
https://hackerone.com/reports/1977222Exploit, Issue Tracking, Mitigation, Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4Exploit, Issue Tracking, Vendor Advisory
https://github.com/nextcloud/server/pull/38194Issue Tracking, Patch
https://hackerone.com/reports/1977222Exploit, Issue Tracking, Mitigation, Third Party Advisory

Timeline

Published: Jun 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-35171?

How severe is CVE-2023-35171?

CVE-2023-35171 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2023-35171?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-35171?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST