CVE-2017-0883

Name: CVE-2017-0883
Creator: NVD / NIST
Published: 2017-04-05T20:59:00.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.59%

Last modified Jun 17, 2026

CVE-2017-0883 is a vulnerability of currently unknown severity. Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for.

Metrics

EPSS Probability

0.59%

43.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nextcloud	Nextcloud Server	<= 9.0.54
Nextcloud	Nextcloud Server	10.0.2

References

https://hackerone.com/reports/169680Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2017-001Patch, Vendor Advisory
https://hackerone.com/reports/169680Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2017-001Patch, Vendor Advisory

Timeline

Published: Apr 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-0883?

How severe is CVE-2017-0883?

Severity scoring for CVE-2017-0883 is pending analysis. The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2017-0883?

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-2017-0883?

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

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Source: NVD / NIST