Critical severity · published Dec 15, 2021
CVE-2021-4119
bookstack is vulnerable to Improper Access Control
9.8
CVSS
26.9%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)26.9% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BO
Bookstack · Bookstackapp
through 21.11.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4119
Patch
https://github.com/bookstackapp/bookstack/commit/e765e618547c92f4e0b46caca6fb91f0174efd99
Exploit
https://huntr.dev/bounties/135f2d7d-ab0b-4351-99b9-889efac46fca
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