CVE-2021-3986
low-risk
Published 2024-11-15
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.
Do I need to act?
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0.20% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
24
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal