CVE-2021-24545

Public Exploit

WP HTML Author Bio <= 1.2.0 - Author+ Stored Cross-Site Scripting

Description

The WP HTML Author Bio WordPress plugin through 1.2.0 does not sanitise the HTML allowed in the Bio of users, allowing them to use malicious JavaScript code, which will be executed when anyone visit a post in the frontend made by such user. As a result, user with a role as low as author could perform Cross-Site Scripting attacks against users, which could potentially lead to privilege escalation when an admin view the related post/s.

References

Link	Tags
https://wpscan.com/vulnerability/64267134-9d8c-4e0c-b24f-d18692a5775e	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-24545?: CVE-2021-24545 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24545?: To fix CVE-2021-24545, 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-2021-24545 being actively exploited in the wild?: It is possible that CVE-2021-24545 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~13% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24545?: CVE-2021-24545 affects Unknown WP HTML Author Bio.

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Description

Category

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

References

Frequently Asked Questions