CVE-2026-58500

Katalog CVE

CVSS 8.2 · High EPSS 0,40%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada appium-mcp. Skor CVSS 3.1 8.2 (High) menurut github.com.

Deskripsi (NVD)

MCP Appium is an MCP server that provides AI assistants with tools to automate mobile app testing on Android and iOS. In versions prior to 1.85.10, the createLocatorGeneratorUI function interpolates attacker-controlled element attributes — text, content-desc, resource-id, and locator selector values — directly into an HTML template literal without any HTML or JavaScript context escaping. An attacker who controls the UI of the app under test can inject arbitrary HTML and JavaScript into the MCP UI resource returned by the generate_locators tool. When a victim's MCP client renders this resource, the injected script executes and can invoke arbitrary MCP tools via window.parent.postMessage, leading to unauthorized MCP tool execution such as taking screenshots, reading page source, or any other registered capability. This issue has been fixed in version 1.85.10.

Rincian

Terbit di NVD

13 Juli 2026

Terakhir diubah

26 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

8.2 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/appium/appium-mcp/security/advisories/GHSA-x975-rgx4-5fh4 exploit · advisory vendor
• https://github.com/appium/appium-mcp/commit/e222bbbd6fe2b656a320efcd143563f08061a83d patch