PT-2022-11465 · Unknown · Calibre-Web

CVE-2021-4171 · Published 2022-01-17 · Updated 2026-06-29

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions calibre-web (affected versions not specified)

Description The issue is related to Business Logic Errors. There is no information provided about the estimated number of potentially affected devices or real-world incidents where this issue was exploited.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-840

Related Identifiers

CVE-2021-4171

GHSA-XP7P-3GX7-J6WX

PYSEC-2026-307

Affected Products

Calibre-Web

References · 10

• 🔥 https://huntr.dev/bounties/1117f439-133c-4563-afb2-6cd80607bd5c · Exploit
• https://github.com/janeczku/calibre-web/commit/3e0d8763c377d2146462811e3e4ccf13f0d312ce · Patch
• https://osv.dev/vulnerability/PYSEC-2026-307 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-xp7p-3gx7-j6wx · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-4171 · Security Note
• https://osv.dev/vulnerability/CVE-2021-4171 · Vendor Advisory
• https://github.com/janeczku/calibre-web · Note
• https://github.com/advisories/GHSA-xp7p-3gx7-j6wx · Note
• https://t.me/cvenotify/102119 · Telegram Post
• https://pypi.org/project/calibreweb · Note