Vulnerability identifier: #VU18405

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-6715

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
W3 Total Cache
Web applications / Modules and components for CMS

Vendor: Frederick Townes

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error in pub/sns.php script. A remote attacker can read contents of arbitrary file on the system via the SubscribeURL field in SubscriptionConfirmation JSON data.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

W3 Total Cache: 0.9.0 - 0.9.3

---

External links
http://vinhjaxt.github.io/2019/03/cve-2019-6715

---

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. However, proof of concept for this vulnerability is available.