What’s Vulnerable › Vulnerabilities

CVE-2026-53649: Joro: Unauthenticated Cross-Origin Plugin Upload Leads to RCE

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-02 · updated 2026-09-09
• Weakness: CWE-306

Description

Joro is a web exploitation framework. Prior to version 1.1.1, Joro's default proxy mode exposes a local API on 127.0.0.1:9090 that performs no authentication and applies a wildcard CORS policy. Because plugin uploads use the CORS-safelisted multipart/form-data content type, cross-origin JavaScript on any page the operator visits can reach privileged endpoints - including uploading a native plugin and triggering a restart - directly through the operator's browser, with no preflight or credentials. Since plugins execute on load, this yields unauthenticated remote code execution as the operator's user from a single page visit. This issue has been patched in version 1.1.1.

Affected products

• BishopFox joro: before 1.1.1

References

• https://github.com/BishopFox/joro/releases/tag/1.1.1
• https://github.com/BishopFox/joro/security/advisories/GHSA-xqhv-chqm-fhcc

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