CVE-2021-24693

Public Exploit
Simple Download Monitor < 3.9.5 - Contributor+ Stored Cross-Site Scripting via File Thumbnail

Description

The Simple Download Monitor WordPress plugin before 3.9.5 does not escape the "File Thumbnail" post meta before outputting it in some pages, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks. Given the that XSS is triggered even when the Download is in a review state, contributor could make JavaScript code execute in a context of a reviewer such as admin and make them create a rogue admin account, or install a malicious plugin

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.62%
Third-Party Advisory wpscan.com
Affected: Unknown Simple Download Monitor
Published at:
Updated at:

References

Link Tags
https://wpscan.com/vulnerability/4bb559b7-8dde-4c90-a9a6-d8dcfbea53a7 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-24693?
CVE-2021-24693 has been scored as a critical severity vulnerability.
How to fix CVE-2021-24693?
To fix CVE-2021-24693, 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-2021-24693 being actively exploited in the wild?
It is possible that CVE-2021-24693 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24693?
CVE-2021-24693 affects Unknown Simple Download Monitor.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.