CVE-2023-53921

8.7 highEPSS 1.0%

High (8.7) in sitemagic sitemagic cms. EPSS 1.0% chance of exploitation in the next 30 days.

SitemagicCMS 4.4.3 contains a remote code execution vulnerability that allows attackers to upload malicious PHP files to the files/images directory. Attackers can upload a .phar file with system command execution payload to compromise the web application and execute arbitrary system commands.

Severity

CVSS 4.0

8.7 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2025-12-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

sitemagic:sitemagic_cms

References

https://sitemagic.org/Download.html
https://www.exploit-db.com/exploits/51464
https://www.vulncheck.com/advisories/sitemagiccms-remote-code-execution-via-unrestricted-file-upload
https://www.exploit-db.com/exploits/51464

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