CVE-2021-4164 json
Cross-Site Request Forgery (CSRF) in janeczku/calibre-web
published 2022-01-17 4 y ago modified 2026-07-06 4 mo ago also GHSA-wxr6-29pv-ch68 , PYSEC-2026-621 , EUVD-2022-0734
- cvss
- 7.6
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
calibre-web is vulnerable to Cross-Site Request Forgery (CSRF)
Patch / fix
- pypi calibreweb 0.6.15
- janeczku janeczku/calibre-web 0.6.15
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/2debace1-a0f3-45c1-95fa-9d0512680758 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| OSV | 3.0 | 7.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H |
| GitHub | 3.0 | 7.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | calibreweb | <0.6.15 |
0.6.15 |
Affected products
- janeczku janeczku/calibre-web
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
github.com
/janeczku/calibre-web/commit/785726deee13b4d56f6c3503dd57c1e3eb7d6f30
web, patch, third-party-advisory
-
huntr.dev
/bounties/2debace1-a0f3-45c1-95fa-9d0512680758
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-4164
advisory
-
github.com
/janeczku/calibre-web
package
-
pypi.org
/project/calibreweb
package
-
github.com
/advisories/GHSA-wxr6-29pv-ch68
advisory
Sources
- CVE List CVE-2021-4164
- GitHub Advisory GHSA-wxr6-29pv-ch68
- NVD CVE-2021-4164
- OSV PYSEC-2026-621
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.