CVE-2024-8920: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in vladolaru Fonto – Custom Web Fonts Manager
The Fonto – Custom Web Fonts Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 1.2.1 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
CVE-2024-8920 is a stored cross-site scripting vulnerability in the Fonto – Custom Web Fonts Manager WordPress plugin (up to version 1.2.1). It allows authenticated users with Author-level or higher privileges to upload SVG files containing malicious scripts. Due to improper input sanitization and output escaping, these scripts execute in the context of users viewing the SVG files, potentially leading to script injection attacks. The vulnerability has a CVSS 3.1 score of 6.4, reflecting a medium severity impact on confidentiality and integrity without affecting availability.
Potential Impact
An attacker with Author-level access or higher can inject arbitrary scripts via SVG file uploads. These scripts execute when other users access the SVG files, potentially allowing theft of sensitive information or session tokens, or manipulation of page content. The impact affects confidentiality and integrity but does not impact availability. No known active exploitation has been reported.
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 the plugin vendor regarding patches or official mitigations.
CVE-2024-8920: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in vladolaru Fonto – Custom Web Fonts Manager
Description
The Fonto – Custom Web Fonts Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 1.2.1 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
CVE-2024-8920 is a stored cross-site scripting vulnerability in the Fonto – Custom Web Fonts Manager WordPress plugin (up to version 1.2.1). It allows authenticated users with Author-level or higher privileges to upload SVG files containing malicious scripts. Due to improper input sanitization and output escaping, these scripts execute in the context of users viewing the SVG files, potentially leading to script injection attacks. The vulnerability has a CVSS 3.1 score of 6.4, reflecting a medium severity impact on confidentiality and integrity without affecting availability.
Potential Impact
An attacker with Author-level access or higher can inject arbitrary scripts via SVG file uploads. These scripts execute when other users access the SVG files, potentially allowing theft of sensitive information or session tokens, or manipulation of page content. The impact affects confidentiality and integrity but does not impact availability. No known active exploitation has been reported.
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 the plugin vendor regarding patches or official mitigations.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2024-09-16T22:37:47.915Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6b3ab7ef31ef0b54f7e8
Added to database: 2/25/2026, 9:35:54 PM
Last enriched: 4/9/2026, 3:19:43 PM
Last updated: 4/12/2026, 5:14:30 PM
Views: 15
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