SSRF in Print My Blog plugin for WordPress

1) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU18356

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11565

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input passed via "site" HTTP GET parameter. A remote attacker can send a specially crafted HTTP request to the affected website and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Print My Blog: 1.5.0 - 1.6.5

External links

http://dumpco.re/bugs/wp-plugin-print-my-blog-ssrf
http://github.com/mnelson4/printmyblog/commit/8584a2839a541eb29fca64252e388c827af3ec21

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.