#VU36436 Path traversal in Yunucms - CVE-2018-19181

Vulnerability identifier: #VU36436

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-19181

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Yunucms
Web applications / CMS

Vendor: Yunucms

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

statics/ueditor/php/vendor/Local.class.php in YUNUCMS 1.1.5 allows arbitrary file deletion via the statics/ueditor/php/controller.php?action=remove key parameter, as demonstrated by using directory traversal to delete the install.lock file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Yunucms: 1.1.5

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External links
https://github.com/doublefast/yunucms/issues/1

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.