CVE-2021-38356

Public Exploit

NextScripts: Social Networks Auto-Poster <= 4.3.20 Reflected Cross-Site Scripting

Description

The NextScripts: Social Networks Auto-Poster <= 4.3.20 WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the $_REQUEST['page'] parameter which is echoed out on inc/nxs_class_snap.php by supplying the appropriate value 'nxssnap-post' to load the page in $_GET['page'] along with malicious JavaScript in $_POST['page'].

References

Link	Tags
https://www.wordfence.com/blog/2021/10/xss-vulnerability-in-nextscripts-social-networks-auto-poster-plugin-impacts-100000-sites/	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-38356?: CVE-2021-38356 has been scored as a medium severity vulnerability.
How to fix CVE-2021-38356?: To fix CVE-2021-38356, 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-2021-38356 being actively exploited in the wild?: It is possible that CVE-2021-38356 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-2021-38356?: CVE-2021-38356 affects NextScripts NextScripts: Social Networks Auto-Poster.

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Description

Category

CWE-79 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

Frequently Asked Questions