JVN#80785288
Wekan vulnerable to cross-site scripting
Overview
Wekan contains a cross-site scripting vulnerbility.
This vulnerability is treated as one of multiple cross-site scripting vulnerabilities, named "Fieldbleed".
Products Affected
- Wekan, versions between 3.12 and 4.11
Description
Wekan, open source kanban board system, is vulnerable to cross-site scripting (CWE-79).
This vulnerability is treated as one of multiple cross-site scripting vulnerabilities, named "Fieldbleed".
Impact
When a logged-in user store malicious value containing Javascript code to the system, that JavaScript code may be executed on another logged-in user's web browser.
Solution
Update the Software
Update the software to the latest version according to the information provided by the developer.
The developer states that Fieldbleed is fixed on version 4.12.
Vendor Status
| Vendor | Link |
| Wekan | Hall of Fame / Fieldbleed |
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
Ryoya Koyama at 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 |
|
| JPCERT Reports |
|
| CERT Advisory |
|
| CPNI Advisory |
|
| TRnotes |
|
| CVE |
CVE-2021-20654 |
| JVN iPedia |
JVNDB-2021-000013 |