VulnerabilityModified

CVE-2020-27387

HIGH 8.8EPSS 18.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 18.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/<php_file_name>. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.

CVSS 3.1: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 18.46% probability · 97th percentile
CISA KEV: Not listed
Weakness: CWE-434
Affected: horizontcms project/horizontcms
Source: cve@mitre.org

References

http://packetstormsecurity.com/files/160046/HorizontCMS-1.0.0-beta-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
https://blog.vonahi.io/whats-in-a-re-name/Exploit, Patch, Third Party Advisory
https://github.com/rapid7/metasploit-framework/pull/14340Third Party Advisory
https://github.com/ttimot24/HorizontCMS/commit/436b5ab679fd27afa3d99c023dbe103113da4feePatch, Third Party Advisory
http://packetstormsecurity.com/files/160046/HorizontCMS-1.0.0-beta-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
https://blog.vonahi.io/whats-in-a-re-name/Exploit, Patch, Third Party Advisory
https://github.com/rapid7/metasploit-framework/pull/14340Third Party Advisory
https://github.com/ttimot24/HorizontCMS/commit/436b5ab679fd27afa3d99c023dbe103113da4feePatch, Third Party Advisory

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