CVE-2023-0340

Public Exploit

Custom Content Shortcode <= 4.0.2 - Contributor+ LFI

Description

The Custom Content Shortcode WordPress plugin through 4.0.2 does not validate one of its shortcode attribute, which could allow users with a contributor role and above to include arbitrary files via a traversal attack. This could also allow them to read non PHP files and retrieve their content. RCE could also be achieved if the attacker manage to upload a malicious image containing PHP code, and then include it via the affected attribute, on a default WP install, authors could easily achieve that given that they have the upload_file capability.

8.8

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.34%

Third-Party Advisory wpscan.com

Affected: Unknown Custom Content Shortcode

References

Link	Tags
https://wpscan.com/vulnerability/71956598-90aa-4557-947a-c4716674543d	exploit vdb entry third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2023-0340?: CVE-2023-0340 has been scored as a high severity vulnerability.
How to fix CVE-2023-0340?: To fix CVE-2023-0340, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-0340 being actively exploited in the wild?: It is possible that CVE-2023-0340 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-0340?: CVE-2023-0340 affects Unknown Custom Content Shortcode.

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