Published:2021/03/26 Last Updated:2021/03/26
JVN#64869876
Multiple vulnerabilities in baserCMS
Overview
baserCMS provided by baserCMS Users Community contains multiple vulnerabilities.
Products Affected
- baserCMS versions prior to 4.4.5
Description
baserCMS provided by baserCMS Users Community contains multiple vulnerabilities listed below.
- Improper Neutralization of JavaScript input in the page editing function (CWE-79) - CVE-2021-20681
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 CVSS v2 AV:N/AC:M/Au:S/C:N/I:P/A:N Base Score: 3.5 - OS command injection (CWE-78) - CVE-2021-20682
CVSS v3 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Base Score: 7.2 CVSS v2 AV:N/AC:L/Au:S/C:P/I:P/A:P Base Score: 6.5 - Improper Neutralization of JavaScript input in the blog article editing function (CWE-79) - CVE-2021-20683
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 CVSS v2 AV:N/AC:M/Au:S/C:N/I:P/A:N Base Score: 3.5
Impact
- An arbitrary script may be executed on the user's web browser - CVE-2021-20681, CVE-2021-20683
- An arbitrary OS command may be executed, by accessing the product with the administrator privileges - CVE-2021-20682
Solution
Update the Software
Update the software to the latest version according to the information provided by the developer.
Vendor Status
Vendor | Status | Last Update | Vendor Notes |
---|---|---|---|
baserCMS Users Community | Vulnerable | 2021/03/26 | baserCMS Users Community website |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
CVE-2021-20681, CVE-2021-20682
Sho Odagiri of Information Science College reported these vulnerabilities to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVE-2021-20683
Yamaguchi Kakeru 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-2021-20681 |
CVE-2021-20682 |
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CVE-2021-20683 |
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JVN iPedia |
JVNDB-2021-000027 |