# CVE-2026-82666: yaojingang GEOFlow code injection in theme editor

Source: https://junglewise.ai/threats/cve-2026-82666-yaojingang-geoflow-code-injection-in-theme-editor  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-31. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-82666 · Severity: medium · CVSS 4.7 · Published 2026-08-31

GEOFlow is an open-source content management and publishing platform with multi-site distribution capabilities. A code injection vulnerability in the Superadmin Theme Editor allows remote attackers to execute arbitrary code by manipulating theme preview parameters, potentially compromising the entire platform and all hosted content.

Technologies: [Yaojingang GEOFlow](https://junglewise.ai/threats/technologies/geoflow). Vendors: [Yaojingang](https://junglewise.ai/threats/vendors/yaojingang).

## Quick answers

**Is CVE-2026-82666 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-82666 being exploited in the wild.

**How severe is CVE-2026-82666?** Medium severity, with a CVSS score of 4.7, published 31 August 2026.

**Which products and versions are affected?** Yaojingang GEOFlow up to 2.1.0.

**Is there a fix for CVE-2026-82666?** A patch was published on 2026-07-17: Patch commit 67abfd864a15d169a78429f3290c91cb3b93e849 merged; version 2.1.1 addresses the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-82666 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-82666?** Check whether you run Yaojingang GEOFlow at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a code injection flaw in the SiteThemeEditorController.php component, specifically in the preview function. The vulnerability allows manipulation of the "blade" argument, which is processed without proper sanitization, enabling arbitrary code injection. The attack is remotely exploitable and requires network access to the admin interface. An authenticated attacker can inject malicious code that will be executed server-side during theme preview rendering. The vulnerability has been patched in version 2.1.1 with commit 67abfd864a15d169a78429f3290c91cb3b93e849.

## Affected products

- yaojingang GEOFlow up to 2.1.0

## Timeline

- 2026-08-31: disclosed
- 2026-07-17: patched: Patch commit 67abfd864a15d169a78429f3290c91cb3b93e849 merged; version 2.1.1 addresses the issue

## References

- [https://github.com/yaojingang/GEOFlow/](https://github.com/yaojingang/GEOFlow/)
- [https://github.com/yaojingang/GEOFlow/commit/67abfd864a15d169a78429f3290c91cb3b93e849](https://github.com/yaojingang/GEOFlow/commit/67abfd864a15d169a78429f3290c91cb3b93e849)

## Related threats

- [yaojingang GEOFlow server-side request forgery in endpoint validation](https://junglewise.ai/threats/cve-2026-82667-yaojingang-geoflow-server-side-request-forgery-in-endpoint)
- [yaojingang GEOFlow path traversal in image library cleanup](https://junglewise.ai/threats/cve-2026-82665-yaojingang-geoflow-path-traversal-in-image-library-cleanup)
- [yaojingang GEOFlow cross-site scripting in search](https://junglewise.ai/threats/cve-2026-82664-yaojingang-geoflow-cross-site-scripting-in-search)