CVE-2022-40690
MEDIUM
5.4
CVSS Score
Published: October 24, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 05:01 AM UTC
2 products affected across 2 vendorsBookStackBookStack
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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.9%
SSVC
No known exploit
Description
Cross-site scripting vulnerability in BookStack versions prior to v22.09 allows a remote authenticated attacker to inject an arbitrary script.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 22.09
Affected range stops below 22.09, so it looks safe — our inference, not a vendor statement
v < 22.09
Affected range stops below 22.09, 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 (3)
Release NotesThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN78862034/index.htmlRelease NotesVendor Advisory
Source: [email protected]
https://www.bookstackapp.com/blog/bookstack-release-v22-09/SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
5.4MEDIUMCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
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