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GHSA-7q9x-8g6p-3x75

LowCVSS 2.3 / 10
Published Mar 25, 2026·Last modified Mar 25, 2026
Affected Components(0)

No affected components available

Description

Impact

The renderPairingPage() function embeds the error parameter directly into HTML without escaping:

const errorHtml = error ? `<p style="color:#e74c3c">${error}</p>` : "";

All current call sites pass hardcoded strings, so this is not exploitable today. However, the function is architecturally fragile — if a future code change passes user-controlled or dynamic content into the error parameter, it would create an XSS vulnerability.

The renderAuthorizePage() function in the same file correctly uses escapeHtml() for dynamic content, making this an inconsistency.

Affected code:

  • packages/server/src/index.ts:64-89 — renderPairingPage() with unescaped error interpolation
  • Compare: packages/server/src/index.ts:130 — renderAuthorizePage() correctly uses escapeHtml()

Patches

v0.70.1

Fix: Apply escapeHtml() to the error parameter:

const errorHtml = error ? `<p style="color:#e74c3c">${escapeHtml(error)}</p>` : "";

Workarounds

No workaround needed — all current callers pass hardcoded strings.

Resources

  • CWE-79: Improper Neutralization of Input During Web Page Generation
  • File: packages/server/src/index.ts
Risk Scores
Base Score
2.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights.

Threat Intelligence
0.6

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Low severity
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