CVE-2024-8964: The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to Stored Cross-Site Scripting

Q: How do I fix CVE-2024-8964?

sirv: upgrade to 7.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2024-8964 being exploited?

CVE-2024-8964 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-2024-8964 affect?

CVE-2024-8964 affects sirv. Severity is medium (CVSS 6.4). The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 7.2.9 due to insufficient input sanitization and output escaping. This

Q: How urgent is CVE-2024-8964?

Priority 29/100. No elevated risk signals yet.

Routine

MEDIUM 6.4UPGRADE

CVE-2024-8964 is a medium-severity flaw (CVSS 6.4) 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 Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 7.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-10-08
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

2024-10-08 08:15 UTCPublished CVE record published
2026-06-17 08:23 UTCUpdated Record last modified

sirv sirv UPGRADE

Affected: < 7.3.0

Fixed in: 7.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 7.3.0 (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-2024-8964?

sirv: upgrade to 7.3.0. Exact commands for each OS are on this page.

Is CVE-2024-8964 being exploited?

CVE-2024-8964 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-2024-8964 affect?

CVE-2024-8964 affects sirv. Severity is medium (CVSS 6.4). The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 7.2.9 due to insufficient input sanitization and output escaping. This

How urgent is CVE-2024-8964?

Priority 29/100. No elevated risk signals yet.

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-2024-8480 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
CVE-2024-32959 HIGH 8.8 UPGRADE Incorrect Privilege Assignment vulnerability in Sirv CDN and Image Hosting Sirv sirv.This issue affects Sirv:

References

← Back to latest CVEs