CVE-2021-3986

MEDIUM EPSS 27.7%
Published Nov 15, 20241y ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Nov 15, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

A vulnerability in janeczku/calibre-web allows unauthorized users to view the names of private shelves belonging to other users. This issue occurs in the file shelf.py at line 221, where the name of the shelf is exposed in an error message when a user attempts to remove a book from a shelf they do not own. This vulnerability discloses private information and affects all versions prior to the fix.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
27.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-209

Affected Products 1

VendorProductVersionRange
janeczkucalibre-web* <0.6.15

References 2

  • github.com https://github.com/janeczku/calibre-web/commit/6f5390ead5df9779ac81fadefffb476e03f93548
    Patch
  • huntr.com https://huntr.com/bounties/394af194-61a7-4e33-b373-877d4c766fca
    ExploitIssue TrackingPatchThird Party Advisory

Remediation

  • github.com https://github.com/janeczku/calibre-web/commit/6f5390ead5df9779ac81fadefffb476e03f93548
    Patch
  • huntr.com https://huntr.com/bounties/394af194-61a7-4e33-b373-877d4c766fca
    ExploitIssue TrackingPatchThird Party Advisory