Stored cross-site scripting in OMGF Google Fonts plugin for WordPress
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. plugin for WordPress is affected in all versions up to and including 6.3.10. Insufficient input sanitization and output escaping of the 's' search parameter in the comments-atom feed lets unauthenticated attackers store scripts (CWE-79) that run when a user opens an injected page, if the server serves the retained .tmp file without a Content-Type or X-Content-Type-Options header, so MIME-sniffing browsers such as Chromium execute them.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 's' Search Parameter via comments-atom Feed in all versions up to, and including, 6.3.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires that the front-end server serves the retained .tmp file without a Content-Type or X-Content-Type-Options header, enabling MIME-sniffing browsers such as Chromium to execute the injected script — a condition present by default on many Apache and nginx/php-fpm deployments.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| daanvandenbergh | OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. | up to 6.3.10 | — | No fix listed | CNA |
- OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy. Vendordaanvandenbergh Affected up to 6.3.10 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for OMGF | GDPR/DSGVO Compliant, Faster Google Fonts. Easy.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-07 Threatist record created from CVE-2026-89417
- 2026-10-07 Alias added: GHSA-jmqx-vrvj-5m9h
- 2026-10-07 CISA SSVC decision points changed
- 2026-10-07 Priority changed: MEDIUM → LOW
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cd760ff9-fe72-44d6-a5f0-212a20dd2a51?source=cve
- https://plugins.trac.wordpress.org/browser/host-webfonts-local/tags/6.3.10/src/Download.php#L78
- https://plugins.trac.wordpress.org/browser/host-webfonts-local/tags/6.3.10/src/Frontend/Process.php#L411
- https://plugins.trac.wordpress.org/browser/host-webfonts-local/tags/6.3.10/src/Frontend/Process.php#L663
- https://plugins.trac.wordpress.org/browser/host-webfonts-local/tags/6.3.10/src/Optimize.php#L159
- https://plugins.trac.wordpress.org/browser/host-webfonts-local/tags/6.3.10/src/Optimize.php#L411
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3707539%40host-webfonts-local%2Ftags%2F6.3.11&old=3641590%40host-webfonts-local%2Ftags%2F6.3.10
- https://plugins.trac.wordpress.org/changeset/3707539/host-webfonts-local/trunk/src/Frontend/Process.php
Sources
- CVE-2026-89417 · CVE Program
- CVE-2026-89417 · NVD
- FIRST EPSS
- GHSA-jmqx-vrvj-5m9h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences