Vulnerability Details : CVE-2021-4026
bookstack is vulnerable to Improper Access Control
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-4026
- cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4026
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 19 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4026
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
huntr.dev | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-4026
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: security@huntr.dev (Secondary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-4026
-
https://huntr.dev/bounties/c6dfa80d-43e6-4b49-95af-cc031bb66b1d
Improper Access Control vulnerability found in bookstackExploit;Third Party Advisory
-
https://github.com/bookstackapp/bookstack/commit/b4fa82e3298a15443ca40bff205b7a16a1031d92
Fixed related permissions query not considering drafts · BookStackApp/BookStack@b4fa82e · GitHubPatch;Third Party Advisory
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