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CVE-2017-0883

18
FAUCET Score

CVE-2017-0883 describes a permission increase vulnerability in Nextcloud Server versions prior to 9.0.55 and 10.0.2. An authenticated attacker with read-only access to shared files or folders could exploit a flaw in the OCS sharing API to re-share these items with elevated permissions, potentially gaining the ability to edit them. This medium-severity vulnerability (CVSS 6.4) has a low attack complexity and does not require user interaction, but only impacts the confidentiality and integrity of affected files. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.0.54CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
10.0.2CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:10.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 55th percentile among its peer group of 21,957 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

hackerone.com / reports/169680
Third Party Advisory
nextcloud.com / security/advisory
PatchVendor Advisory