Vulnerability · Published Mar 26, 2021 · Assigned by jpcert
CVE-2021-20681
Medium 5.4
In plain English
A medium-severity security flaw in baserCMS from baserCMS Users Community. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.7%top 45.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Improper neutralization of JavaScript input in the page editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | baserproject/basercms | 4.4.5 | GHSA-24p5-x9f9-vvpx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| baserCMS Users Community | baserCMS | versions prior to 4.4.5 |
References
- https://basercms.net/security/JVN64869876 x_refsource_MISC
- https://jvn.jp/en/jp/JVN64869876/index.html x_refsource_MISC