JVN#78862034
BookStack vulnerable to cross-site scripting
Overview
BookStack contains a cross-site scripting vulnerability.
Products Affected
- BookStack versions prior to v22.09
Description
BookStack contains a cross-site scripting vulnerability (CWE-79).
Impact
An arbitrary script may be executed on the web browser of the user who is accessing the site using the API of the product.
Solution
Update the Software
Update the software to the latest version according to the information provided by the developer.
According to the developer, when using BookStack content via its API, it is necessary to check the following documentation and add the recommended protections as necessary.
https://www.bookstackapp.com/docs/admin/security/#using-bookstack-content-externally
Vendor Status
| Vendor | Link |
| BookStack | BookStack Release v22.09 |
| Admin Documentation | Security | Using BookStack Content Externally |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Kenichi Okuno of Mitsui Bussan Secure Directions, Inc reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2022-40690 |
| JVN iPedia |
JVNDB-2022-000074 |