CVE-2023-53889

8.6 highEPSS 0.9%

High (8.6) in grabaperch perch. EPSS 0.9% chance of exploitation in the next 30 days.

Perch CMS 3.2 contains a remote code execution vulnerability that allows authenticated administrators to upload arbitrary PHP files through the assets management interface. Attackers can upload a malicious .phar file with embedded system command execution capabilities to execute arbitrary commands on the server.

Severity

CVSS 4.0

8.6 high

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

CVSS 3.1

7.2 high

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2025-12-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

grabaperch:perch

References

https://grabaperch.com/
https://www.exploit-db.com/exploits/51620
https://www.vulncheck.com/advisories/perch-cms-remote-code-execution-via-unrestricted-file-upload
https://www.exploit-db.com/exploits/51620

Check your stack JSON