CVE-2026-44651: SillyTavern has a reflected XSS vulnerability in the CORS proxy middleware

May 12, 2026 (updated June 9, 2026)

An attacker may run arbitrary JavaScript in the victim context, steal tokens, and manipulate user-visible behavior.

References

github.com/SillyTavern/SillyTavern/releases/tag/1.18.0
github.com/SillyTavern/SillyTavern/security/advisories/GHSA-xc4x-2452-5gc9
github.com/advisories/GHSA-xc4x-2452-5gc9
nvd.nist.gov/vuln/detail/CVE-2026-44651

Code Behaviors & Features

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