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CVE-2026-21861: Improper Neutralization of Special Elements used in an OS Command

🗓️ 31 Mar 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Authenticated OS command injection in baserCMS prior to 5.2.3 via core update.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-21861
31 Mar 202600:43
–attackerkb
circl
Circl
CVE-2026-21861
30 Mar 202623:04
–circl
cnnvd
CNNVD
baserCMS 安全漏洞
31 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-21861
31 Mar 202600:43
–cve
cvelist
Cvelist
CVE-2026-21861 baserCMS: OS Command Injection Leading to Remote Code Execution (RCE)
31 Mar 202600:43
–cvelist
euvd
EUVD
EUVD-2026-17255
31 Mar 202622:27
–euvd
github
Github Security Blog
baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)
31 Mar 202622:27
–github
nvd
NVD
CVE-2026-21861
31 Mar 202601:16
–nvd
osv
OSV
GHSA-QXMC-6F24-G86G baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)
31 Mar 202622:27
–osv
ptsecurity
Positive Technologies
PT-2026-29146
31 Mar 202600:00
–ptsecurity
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01 Apr 2026 00:00Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.17.2 - 9.1
EPSS0.02282
SSVC
0