UnoPim has Broken Access Control

Description

Summary

In Unopim, it is possible to create roles and choose the privileges. However, users without the “Delete” privilege for Products cannot delete a single product via the standard endpoint (expected behavior), but can still delete products via the mass-delete endpoint, even when the request contains only one product ID.

Severity: High CVSS Score 8.1 (CVSS 3.1 Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
Category: Broken Access Control / Missing Authorization (OWASP A01:2021)
Impact: Unauthorized product deletion -> data loss, possible business disruption

Affected Behavior

Single delete (enforced):
DELETE /admin/catalog/products/{id} returns 401 with "This action is unauthorized" for users lacking the Delete privilege.

Mass delete (not enforced):
POST /admin/catalog/products/mass-delete allows deletion without the Delete privilege. This occurs for both multiple IDs and a single ID submitted to the bulk endpoint.

PoC

A video was captured in Burp Suite for a proof of concept. The cookies were used directly from Burp Suite and rendered the My Account page to prove what cookies belong to what users. The video PoC is listed in references.

Impact

Unauthorized product deletion -> data loss, possible business disruption

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2025-08-22 16:49:55 UTC
Updated
2025-08-22 21:08:50 UTC
GitHub reviewed
2025-08-22 16:49:55 UTC
NVD published
2025-08-22

EPSS Score

Score Percentile
0.06% 19.06%

CVSS Scores

Base score Version Severity Vector
8.1 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.

Identifiers

CWEs

CWE id Name
CWE-284 Improper Access Control
CWE-862 Missing Authorization

Credits

  • 0xcharb (reporter)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
composer unopim/unopim <= 0.3.0 0.3.1

References

cvelogic Threat Intelligence