CVE-2024-8964: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in sirv Image Optimizer, Resizer and CDN – Sirv
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.
AI Analysis
Technical Summary
The Sirv Image Optimizer, Resizer and CDN plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) via SVG file uploads. Authenticated attackers with Author-level privileges or above can upload SVG files containing malicious scripts that are not properly sanitized or escaped. These scripts execute in the context of users viewing the SVG, potentially leading to script injection attacks. The vulnerability affects all versions up to 7.2.9. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and partial impact on confidentiality and integrity but no impact on availability. No patch or remediation details are currently available from the vendor or other sources.
Potential Impact
An attacker with Author-level access or higher can inject malicious scripts via SVG file uploads that execute in the browsers of users who view the SVG files. This can lead to partial compromise of confidentiality and integrity of user data within the affected WordPress environment. The vulnerability does not impact availability. There are no known exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level user permissions to trusted users only and consider disabling SVG uploads if possible. Monitor for updates from Sirv regarding patches or official mitigations.
CVE-2024-8964: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in sirv Image Optimizer, Resizer and CDN – Sirv
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Sirv Image Optimizer, Resizer and CDN plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) via SVG file uploads. Authenticated attackers with Author-level privileges or above can upload SVG files containing malicious scripts that are not properly sanitized or escaped. These scripts execute in the context of users viewing the SVG, potentially leading to script injection attacks. The vulnerability affects all versions up to 7.2.9. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and partial impact on confidentiality and integrity but no impact on availability. No patch or remediation details are currently available from the vendor or other sources.
Potential Impact
An attacker with Author-level access or higher can inject malicious scripts via SVG file uploads that execute in the browsers of users who view the SVG files. This can lead to partial compromise of confidentiality and integrity of user data within the affected WordPress environment. The vulnerability does not impact availability. There are no known exploits in the wild currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level user permissions to trusted users only and consider disabling SVG uploads if possible. Monitor for updates from Sirv regarding patches or official mitigations.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2024-09-17T23:01:36.205Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6b3ab7ef31ef0b54f886
Added to database: 2/25/2026, 9:35:54 PM
Last enriched: 4/9/2026, 3:20:16 PM
Last updated: 4/11/2026, 5:59:59 PM
Views: 15
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.