Book Stack v23.10.2 - LFR via Blind SSRF
CVE-2023-6199

6.5MEDIUM

Key Information:

Vendor
BookStack
Status
BookStack
Vendor
CVE Published:
20 November 2023

Badges

👾 Exploit Exists🟡 Public PoC

Summary

Book Stack version 23.10.2 allows filtering local files on the server. This is possible because the application is vulnerable to SSRF.

Affected Version(s)

BookStack 23.10.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

php_filter_chains_oracle_exploit_for_CVE-2023-6199
Created by AbdrrahimDahmani

References

https://fluidattacks.com/advisories/imagination/
https://www.bookstackapp.com/blog/bookstack-release-v23-1...

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.