MCP Atlassian: Reflected XSS in OAuth Setup Callback Handler
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| sooperset | mcp-atlassian | affected |
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No data.
| Vendor | Product | Versions | ||||||||
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| Sooperset | Mcp-atlassian |
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| Source | ID | Title |
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Github GHSA |
GHSA-g2r2-3j32-j27x | MCP Atlassian: Reflected XSS in OAuth Setup Callback Handler |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.262% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mcp-atlassian
Mcp-atlassian mcp Atlassian |
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| CPEs | cpe:2.3:a:mcp-atlassian:mcp_atlassian:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mcp-atlassian
Mcp-atlassian mcp Atlassian |
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Sooperset
Sooperset mcp-atlassian |
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| Vendors & Products |
Sooperset
Sooperset mcp-atlassian |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the OAuth error query parameter is passed to CallbackHandler._send_response in oauth_setup.py and interpolated into an HTML page without escaping. A crafted authorization callback can inject markup or script that executes in the browser of a user completing the OAuth flow. This issue is fixed in version 0.22.0. | |
| Title | MCP Atlassian: Reflected XSS in OAuth Setup Callback Handler | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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