Home/CVE/Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 all
CVE

CVE-2021-20683

Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 all

Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors.

MEDIUM · CVSS 5.4 EPSS 0.00203
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
basercms< 4.4.5
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Mar 2021 · 09:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://basercms.net/security/JVN64869876PatchVendor Advisory
https://jvn.jp/en/jp/JVN64869876/index.htmlThird Party Advisory
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