Published:2022/06/01 Last Updated:2022/06/01
JVN#04155116
WordPress Plugin "Modern Events Calendar Lite" vulnerable to cross-site scripting
Overview
WordPress Plugin "Modern Events Calendar Lite" contains a cross-site scripting vulnerability.
Products Affected
- Modern Events Calendar Lite prior to 6.3.0
Description
WordPress Plugin "Modern Events Calendar Lite" provided by Webnus contains a stored cross-site scripting vulnerability (CWE-79).
Impact
An arbitrary script may be executed on the web browser of the user who is accessing the website using the plugin.
Solution
Update the plugin
Update the plugin to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Webnus | Modern Events Calendar Lite Free Download |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score:
5.4
| 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:L/Au:S/C:N/I:P/A:N
Base Score:
4.0
| 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
Tsutomu Aramaki 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-2022-30533 |
| JVN iPedia |
JVNDB-2022-000041 |