CVE-2021-24509

Public Exploit

Page View Counts < 2.4.9 - Contributor+ Stored XSS

Description

The Page View Count WordPress plugin before 2.4.9 does not escape the postid parameter of pvc_stats shortcode, allowing users with a role as low as Contributor to perform Stored XSS attacks. A post made by a contributor would still have to be approved by an admin to have the XSS triggered in the frontend, however, higher privilege users, such as editor could exploit this without the need of approval, and even when the blog disallows the unfiltered_html capability.

References

Link	Tags
https://wpscan.com/vulnerability/06df2729-21da-4c22-ae1e-dda1f15bdf8f	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-24509?: CVE-2021-24509 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24509?: To fix CVE-2021-24509, 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-2021-24509 being actively exploited in the wild?: It is possible that CVE-2021-24509 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-2021-24509?: CVE-2021-24509 affects Unknown Page View Count.

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Description

Category

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

References

Frequently Asked Questions