FKIE_CVE-2026-4657
Vulnerability from fkie_nvd - Published: 2026-09-10 04:18 - Updated: 2026-09-10 18:18
Severity
Summary
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 <style> 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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Easy Google Fonts",
"vendor": "sunny_johal",
"versions": [
{
"lessThanOrEqual": "2.0.4",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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 \u003cstyle\u003e 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."
}
],
"id": "CVE-2026-4657",
"lastModified": "2026-09-10T18:18:01.710",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.1,
"impactScore": 2.7,
"source": "security@wordfence.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-4657",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-10T17:28:50.438514Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-10T04:18:04.410",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/tags/2.0.4/src/includes/data.php#L214"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/tags/2.0.4/src/includes/data.php#L24"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/tags/2.0.4/src/includes/data.php#L72"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/tags/2.0.4/src/includes/frontend.php#L185"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/tags/2.0.4/src/includes/settings.php#L123"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/trunk/src/includes/data.php#L214"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/trunk/src/includes/data.php#L24"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/trunk/src/includes/data.php#L72"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/trunk/src/includes/frontend.php#L185"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/easy-google-fonts/trunk/src/includes/settings.php#L123"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7bf1d5a8-84b7-40e3-b258-eef599b64add?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "security@wordfence.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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