CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2021-4171
Critical (9.8) in janeczku calibre-web. EPSS 1.4% chance of exploitation in the next 30 days. Fixed in calibreweb 0.6.15.
calibre-web is vulnerable to Business Logic Errors
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWE
- CWE-840
- Published
- Modified
- Record from
- the NVD, synced
Affected
- janeczku:calibre-web
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xp7p-3gx7-j6wx | PyPI | calibreweb | <0.6.15 | 0.6.15 |
| PYSEC-2026-307 | PyPI | calibreweb | <0.6.15 | 0.6.15 |
References
- https://github.com/janeczku/calibre-web/commit/3e0d8763c377d2146462811e3e4ccf13f0d312ce
- https://huntr.dev/bounties/1117f439-133c-4563-afb2-6cd80607bd5c
- https://github.com/janeczku/calibre-web/commit/3e0d8763c377d2146462811e3e4ccf13f0d312ce
- https://huntr.dev/bounties/1117f439-133c-4563-afb2-6cd80607bd5c