CVE-2021-24334

Public Exploit
Instant Images WordPress Plugin < 4.4.0.1 - Authenticated Stored XSS & XFS

Description

The Instant Images – One Click Unsplash Uploads WordPress plugin before 4.4.0.1 did not properly validate and sanitise its unsplash_download_w and unsplash_download_h parameter settings (/wp-admin/upload.php?page=instant-images), only validating them client side before saving them, leading to a Stored Cross-Site Scripting issue.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Third-Party Advisory wpscan.com
Affected: Unknown Instant Images – One Click Unsplash Uploads
Published at:
Updated at:

References

Link Tags
https://wpscan.com/vulnerability/ae79189a-6b63-4110-9567-cd7c97d71e4f third party advisory exploit
https://m0ze.ru/vulnerability/%5B2021-04-22%5D-%5BWordPress%5D-%5BCWE-79%5D-Instant-Images-WordPress-Plugin-v4.4.0.txt

Frequently Asked Questions

What is the severity of CVE-2021-24334?
CVE-2021-24334 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24334?
To fix CVE-2021-24334, 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-2021-24334 being actively exploited in the wild?
It is possible that CVE-2021-24334 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-2021-24334?
CVE-2021-24334 affects Unknown Instant Images – One Click Unsplash Uploads.
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.