TI-2024-05428 Aliases CVE-2024-5853 GHSA-4x4x-4g44-6g6p

Image Optimizer, Resizer and CDN – Sirv <= 7.2.6 - Authenticated (Contributor+) Arbitrary File Upload

MEDIUM 44CWE-434Published 2024-06-19 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00787 56th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
sirv	Image Optimizer, Resizer and CDN – Sirv	up to 7.2.6	—	No fix listed	CNA

Image Optimizer, Resizer and CDN – Sirv Vendorsirv Affected up to 7.2.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:sirv:sirv::::::wordpress::*	before 7.2.7	Vulnerable	sirv

cpe:2.3:a:sirv:sirv:*:*:*:*:*:wordpress:*:* Versions before 7.2.7 Vulnerable ·sirv

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-5853
2026-10-03 Alias added: GHSA-4x4x-4g44-6g6p

References

Patch 1

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

Advisory 1

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

TI-2024-07862 Missing authorization in sirv Image Optimizer, Resizer and CDN – Sirv CVSS 3.1HIGH 8.8
TI-2016-08988 The sirv plugin before 1.3.2 for WordPress has SQL injection via the id parameter. CVSS 3.1HIGH 8.8
TI-2024-21826 WordPress Sirv plugin <= 7.2.2 - Arbitrary Option Update to Privilege Escalation vulnerability CVSS 3.1HIGH 8.8
TI-2023-27801 WordPress Image Optimizer, Resizer and CDN – Sirv plugin <= 7.1.2 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
TI-2024-18553 WordPress Sirv plugin <= 7.2.0 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
TI-2024-10063 Authorization bypass in sirv Image Optimizer, Resizer and CDN – Sirv CVSS 3.1HIGH 8.1

See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences