VulnerabilityAnalyzed

CVE-2023-53889

Perch CMS 3.2 contains a remote code execution vulnerability that allows authenticated administrators to upload arbitrary PHP files through the assets management interface.

HIGH 8.6EPSS 0.93%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 4.0: 8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.93% probability · 59th percentile
CISA KEV: Not listed
Weakness: CWE-434
Affected: grabaperch/perch
Source: disclosure@vulncheck.com

References

https://grabaperch.com/Product
https://www.exploit-db.com/exploits/51620Exploit
https://www.vulncheck.com/advisories/perch-cms-remote-code-execution-via-unrestricted-file-uploadThird Party Advisory
https://www.exploit-db.com/exploits/51620Exploit

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.