CVE-2024-10855: The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of

Q: How do I fix CVE-2024-10855?

sirv: upgrade to 7.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-10855 being exploited?

CVE-2024-10855 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-10855 affect?

CVE-2024-10855 affects sirv. Severity is high (CVSS 8.1). The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to insufficient validation on the filename parameter of the sirv_upload_file_by_chu

This month

HIGH 8.1UPGRADE

CVE-2024-10855 is a high-severity flaw (CVSS 8.1) affecting sirv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to insufficient validation on the filename parameter of the sirv_upload_file_by_chunks() function and lack of in all versions up to, and including, 7.3.0. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary option values on the Wor

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-639
Published	2024-11-20
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: sirv

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-20 07:15 UTCPublished CVE record published
2026-06-17 06:56 UTCUpdated Record last modified

sirv sirv UPGRADE

Affected: < 7.3.1

Fixed in: 7.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy sirv || rpm -q sirv || sirv --version

2. UPGRADE to 7.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sirv

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sirv

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-10855?

sirv: upgrade to 7.3.1. Exact commands for each OS are on this page.

Is CVE-2024-10855 being exploited?

CVE-2024-10855 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-10855 affect?

CVE-2024-10855 affects sirv. Severity is high (CVSS 8.1). The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of data that can lead to a denial of service due to insufficient validation on the filename parameter of the sirv_upload_file_by_chu

How urgent is CVE-2024-10855?

Priority 40/100. High severity

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2025-46233 MEDIUM 6.5 UPGRADE Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Sirv CDN
CVE-2024-8964 MEDIUM 6.4 UPGRADE The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to Stored Cross-Site Scripting
CVE-2024-8480 HIGH 8.8 UPGRADE The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized modification of
CVE-2024-6392 MEDIUM 5.4 UPGRADE The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to unauthorized plugin settings
CVE-2024-5853 CRITICAL 9.9 UPGRADE The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to arbitrary file uploads due t

References

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