nextcloud / nextcloud/circles

Share function restrictions not applied

Open
#201 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

0. Needs triage bug
Dominant language
JavaScript
Stars
177
Forks
68
Avg merge
2d 22h
Merged PRs (30d)
60

Description

Currently this app (version 0.13.6) is not fully applying restrictions about sharing (core settings). Users can enumerate all users and foreign groups, even if sharing is only allowed inside the own groups. This is especially a privacy issue.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the behavior in version 0.13.6 with sharing restricted to the user's own groups, checking whether all users and foreign groups can still be enumerated. Trace the core settings and sharing-related entry points to identify where the restriction is bypassed. Done means users and foreign groups are no longer visible when that restriction is enabled.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
authorization, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.