Medium severity · published Jan 16, 2022
CVE-2021-4170
calibre-web is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
5.4
CVSS
0.8%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
Calibre-web · Janeczku
before 0.6.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4170
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4170
Patch
https://github.com/janeczku/calibre-web/commit/7ad419dc8c12180e842a82118f4866ac3d074bc5
Exploit
https://huntr.dev/bounties/ff395101-e392-401d-ab4f-579c63fbf6a0
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