CVE-2021-3874
Path Traversal in bookstackapp/bookstack
MEDIUM
6.5
CVSS Score
Published: October 15, 2021 at 01:40 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
1 product affected across 1 vendorBookStack
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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
Description
bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 21.08.5
Affected range stops below 21.08.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/bookstackapp/bookstack/commit/7224fbcc89f00f2b71644e36bb1b1d96addd1d5ax_refsource_CONFIRMExploitPatchThird Party Advisory
Source: [email protected]
https://huntr.dev/bounties/ac268a17-72b5-446f-a09a-9945ef58607aCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-22
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