CVE-2026-44651— SillyTavern: Reflected XSS vulnerability in the CORS proxy middleware
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| SillyTavern | SillyTavern | < 1.18.0 | affected |
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I. Basic Information for CVE-2026-44651
Vulnerability Information
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Vulnerability Title
SillyTavern: Reflected XSS vulnerability in the CORS proxy middleware
Source: NVD (National Vulnerability Database)
Vulnerability Description
SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to 1.18.0, when fetch(url) throws, the code sends: res.status(500).send('Error occurred while trying to proxy to: ' + url + ' ' + error). The url value is attacker-controlled (req.params.url) and is not HTML-escaped before rendering. This vulnerability is fixed in 1.18.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SillyTavern | SillyTavern | < 1.18.0 | - |
II. Public POCs for CVE-2026-44651
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-44651 (1)
Same Patch Batch · SillyTavern · 2026-05-29 · 6 CVEs total
| CVE-2026-44649 | 9.8 CRITICAL | SillyTavern: Authentication Bypass via SSO Header Injection |
| CVE-2026-44650 | 9.1 CRITICAL | SillyTavern: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal' |
| CVE-2026-46372 | 8.5 HIGH | SillyTavern: SSRF in SearXNG Search Proxy via Unvalidated baseUrl |
| CVE-2026-44648 | 7.5 HIGH | SillyTavern: Existing sessions are not invalidated after password change, allowing session |
| CVE-2026-44652 | SillyTavern: SSRF vulnerability in the CORS proxy middleware |
IV. Related Vulnerabilities
Same product: SillyTavern
- CVE-2026-44650
SillyTavern: Improper Limitation of a Pathname to a Restrict - CVE-2026-44648
SillyTavern: Existing sessions are not invalidated after pas - CVE-2026-44649
SillyTavern: Authentication Bypass via SSO Header Injection - CVE-2026-44652
SillyTavern: SSRF vulnerability in the CORS proxy middleware - CVE-2026-46372
SillyTavern: SSRF in SearXNG Search Proxy via Unvalidated ba
Same vendor: SillyTavern
- CVE-2026-44650
SillyTavern: Improper Limitation of a Pathname to a Restrict - CVE-2026-44648
SillyTavern: Existing sessions are not invalidated after pas - CVE-2026-44649
SillyTavern: Authentication Bypass via SSO Header Injection - CVE-2026-44652
SillyTavern: SSRF vulnerability in the CORS proxy middleware - CVE-2026-46372
SillyTavern: SSRF in SearXNG Search Proxy via Unvalidated ba
V. Comments for CVE-2026-44651
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