Easy Google Fonts - Cross-Site Scripting (XSS) (CVE-2026-4657)

Q: Am I affected by this vulnerability?

You are affected if your site runs Easy Google Fonts.

Q: How do I fix it?

Update Easy Google Fonts to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

Q: What can an attacker actually do?

This is a Cross-Site Scripting (XSS) flaw. An attacker who exploits it can run script in a visitor's browser, stealing sessions or planting an administrator account.

CVE-2026-4657

Vulnerability CVE-2026-4657 PLUGIN easy-google-fonts MEDIUM

The Easy Google Fonts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the control_selectors meta field in all versions up to, and including, 2.0.4. This is due to the plugin registering the control_selectors meta field with show_in_rest enabled but without a sanitize_callback, and subsequently outputting this unsanitized data directly into tags on the frontend without proper 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 an injected page.

CVE-2026-4657

MEDIUM CVSS 6.4 Published 2026-09-10 Updated 2026-09-10

AI Risk Elevated (55/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority

Severity Band MEDIUM

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Affected Components 1

Reference Links 10

AI Risk Engine Elevated (55/100)

Exploitability Medium

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2026-09-10 CVE published and first recorded in the threat feed.
2026-09-10 Record updated with latest vulnerability metadata.
2026-09-10 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 30 days ago

AI enriched 30 days ago (2026-09-10 21:59 UTC)

Technical Summary

Potential Impact

Severity is MEDIUM (CVSS 6.4). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Medium based on severity and technical exposure profile.

Primary risk drivers: severity and technical exposure profile

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 55/100 (Elevated, Medium) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Easy Google Fonts PLUGIN · easy-google-fonts Affected: >= 0, <= 2.0.4 Fixed version not specified

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update Easy Google Fonts to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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Not sure if you are affected?

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