CVE-2021-3874 — MEDIUM (6.5)

Q: What is CVE-2021-3874?

CVE-2021-3874 is a vulnerability with a CVSS score of 6.5 (MEDIUM). bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Q: How severe is CVE-2021-3874?

CVE-2021-3874 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-3874?

Check the references section above for vendor advisories and patch information. Affected products include: Bookstackapp Bookstack.

Vulnerability Description

bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Bookstackapp	Bookstack	< 21.08.5

Related Weaknesses (CWE)

CWE-22

References

https://github.com/bookstackapp/bookstack/commit/7224fbcc89f00f2b71644e36bb1b1d9PatchThird Party Advisory
https://huntr.dev/bounties/ac268a17-72b5-446f-a09a-9945ef58607aExploitPatchThird Party Advisory
https://github.com/bookstackapp/bookstack/commit/7224fbcc89f00f2b71644e36bb1b1d9PatchThird Party Advisory
https://huntr.dev/bounties/ac268a17-72b5-446f-a09a-9945ef58607aExploitPatchThird Party Advisory

FAQ

What is CVE-2021-3874?

CVE-2021-3874 is a vulnerability with a CVSS score of 6.5 (MEDIUM). bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

How severe is CVE-2021-3874?

CVE-2021-3874 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3874?

Check the references section above for vendor advisories and patch information. Affected products include: Bookstackapp Bookstack.