Published:2021/06/11 Last Updated:2021/06/11
JVN#70566757
WordPress plugin "Welcart e-Commerce" vulnerable to cross-site scripting
Overview
WordPress plugin "Welcart e-Commerce" contains a cross-site scripting vulnerability.
Products Affected
- Welcart e-Commerce versions prior to 2.2.4
Description
WordPress plugin "Welcart e-Commerce" provided by Collne Inc. contains a stored cross-site scripting vulnerability (CWE-79).
Impact
If a user views a malicious page while logged in to the affected system with the administrative privilege, an arbitrary script may be executed.
Solution
Update the plugin
Update the plugin according to the information provided by the developer.
The developer has released the following version that addresses the vulnerability.
- Welcart e-Commerce 2.2.4
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score:
6.1
| 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) |
CVSS v2
AV:N/AC:M/Au:N/C:N/I:P/A:N
Base Score:
4.3
| 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
Yu Iwama of Secure Sky Technology 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-2021-20734 |
| JVN iPedia |
JVNDB-2021-000047 |