CVE-2024-8480

Image Optimizer, Resizer and CDN – Sirv <= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload

Description

The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'sirv_save_prevented_sizes' function in all versions up to, and including, 7.2.7. This makes it possible for authenticated attackers, with Contributor-level access and above, to exploit the 'sirv_upload_file_by_chunks_callback' function, which lacks proper file type validation, allowing attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 2.06% Top 20%
Third-Party Advisory wordfence.com
Affected: sirv Image Optimizer, Resizer and CDN – Sirv
Published at:
Updated at:

References

Link Tags
https://www.wordfence.com/threat-intel/vulnerabilities/id/1e3e628f-b5e7-40fd-9d34-4a3b23e1e0e7?source=cve third party advisory
https://plugins.trac.wordpress.org/browser/sirv/trunk/sirv.php?rev=3103410#L4647 issue tracking
https://plugins.trac.wordpress.org/browser/sirv/tags/7.2.7/sirv.php#L6331 issue tracking
https://plugins.trac.wordpress.org/changeset/3115018/ patch

Frequently Asked Questions

What is the severity of CVE-2024-8480?
CVE-2024-8480 has been scored as a high severity vulnerability.
How to fix CVE-2024-8480?
To fix CVE-2024-8480, 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-2024-8480 being actively exploited in the wild?
It is possible that CVE-2024-8480 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-8480?
CVE-2024-8480 affects sirv Image Optimizer, Resizer and CDN – Sirv.
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.