CVE-2017-0936: Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check al...

Description

Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.

Metrics

EPSS Probability

0.78%

51.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	< 11.0.7
Nextcloud	Nextcloud Server	12.0.5

References

https://hackerone.com/reports/297751Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2018-001Vendor Advisory
https://hackerone.com/reports/297751Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2018-001Vendor Advisory

Timeline

Published: Mar 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-0936?

Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.

How severe is CVE-2017-0936?

Severity scoring for CVE-2017-0936 is pending analysis. The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2017-0936?

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.

How Strix Helps

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