CVE-2024-5853

CRITICAL

Sirv < 7.2.7 - Authenticated Arbitrary File Upload via sirv_upload_file_by_chanks AJAX Action

Title source: llm

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.

References (2)

Core 2

Core References

Patch

https://plugins.trac.wordpress.org/changeset/3103410/sirv/trunk/sirv.php

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/e89b40ec-1952-46e3-a91b-bd38e62f8929?source=cve

Scores

CVSS v3 9.9

EPSS 0.0079

EPSS Percentile 51.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-434

Status published

Products (2)

sirv/Image Optimizer, Resizer and CDN – Sirv < 7.2.6

sirv/sirv < 7.2.7

Published Jun 19, 2024

Tracked Since Feb 18, 2026