Critical severity9.9NVD Advisory· Published Jun 19, 2024· Updated Apr 8, 2026

CVE-2024-5853

Description

The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the sirv_upload_file_by_chanks AJAX action in all versions up to, and including, 7.2.6. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected products

Sirv/Sirv
cpe:2.3:a:sirv:sirv:*:*:*:*:*:wordpress:*:*
Range: <7.2.7

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

plugins.trac.wordpress.org/changeset/3103410/sirv/trunk/sirv.phpnvdPatch
www.wordfence.com/threat-intel/vulnerabilities/id/e89b40ec-1952-46e3-a91b-bd38e62f8929nvdThird Party Advisory

News mentions

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cvss	0.643
epss	0.008
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000