IDOR in Group members in limesurvey/limesurvey

Valid

Reported on

Jun 28th 2023


Description

By manipulating the ugid, user who is not in group can view the members list of the group

Proof of Concept

Step 1: Go to User Group function, see that this user can only view this two groups. Step 2: Click on View a group, manipulate the ugid, confirm that this user can view the Group Members of other owners. Step 3: Verify that this group owner is demo

Impact

By manipulating the ugid, user who is not in group can view the members list of the group

We are processing your report and will contact the limesurvey team within 24 hours. 5 months ago
We have contacted a member of the limesurvey team and are waiting to hear back 5 months ago
Carsten Schmitz modified the Severity from Medium (6.5) to Medium (4.3) 5 months ago
Carsten Schmitz
5 months ago

Maintainer


Please ba patient while we verify the issue. Intern issue number: 18935

The researcher has received a minor penalty to their credibility for miscalculating the severity: -1
tiborpacalat validated this vulnerability 4 months ago
tuannq2299 has been awarded the disclosure bounty
The fix bounty is now up for grabs
The researcher's credibility has increased: +7
tiborpacalat marked this as fixed in 6.1.8+230717 with commit 5692fc 4 months ago
The fix bounty has been dropped
This vulnerability will not receive a CVE
tiborpacalat published this vulnerability 4 months ago
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