Vulnerability identifier: #VU70526
Vulnerability risk: Medium
CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:P/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-918
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
WordPress
Web applications /
CMS
Vendor: WordPress.ORG
Description
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input within the pingback functionality. A remote attacker can send a specially crafted HTTP request 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 or send malicious requests to other servers from the vulnerable system.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
WordPress: 6.1 - 6.1.1, 6.0 - 6.0.3, 5.9 - 5.9.5, 5.8 - 5.8.6, 5.7 - 5.7.8, 5.6 - 5.6.10, 5.5 - 5.5.11, 5.4 - 5.4.12, 5.3 - 5.3.14, 5.2 - 5.2.17, 5.1 - 5.1.15, 5.0 - 5.0.18, 4.9 - 4.9.22, 4.8 - 4.8.21, 4.7 - 4.7.25, 4.6 - 4.6.25, 4.5 - 4.5.28, 4.4 - 4.4.29, 4.3 - 4.3.30, 4.2 - 4.2.34, 4.1 - 4.1.37
External links
http://wpscan.com/vulnerability/c8814e6e-78b3-4f63-a1d3-6906a84c1f11
http://blog.sonarsource.com/wordpress-core-unauthenticated-blind-ssrf/
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.