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CVE-2020-26967

Quick assessment

Affected
Mozilla Firefox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 FireFox 83之前版本存在安全漏洞，该漏洞源于当使用突变观察者侦听页面更改时，恶意web页面可能会使Firefox的屏幕截图与它注入到页面中的其他元素进行交互。这将导致屏幕截图代码中的内部错误和意外行为。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.84% · P55
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I. Basic Information for CVE-2020-26967

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors and unexpected behavior in the Screenshots code. This vulnerability affects Firefox < 83.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 FireFox 83之前版本存在安全漏洞，该漏洞源于当使用突变观察者侦听页面更改时，恶意web页面可能会使Firefox的屏幕截图与它注入到页面中的其他元素进行交互。这将导致屏幕截图代码中的内部错误和意外行为。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mozilla Firefox < 83 -

II. Public POCs for CVE-2020-26967

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III. Intelligence Information for CVE-2020-26967

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Vendor Advisories for CVE-2020-26967 (2)

Same Patch Batch · Mozilla · 2020-12-09 · 21 CVEs total

CVE-2020-26960 Mozilla Firefox 资源管理错误漏洞
CVE-2020-26970 Mozilla Thunderbird 缓冲区错误漏洞
CVE-2020-26969 Mozilla Firefox ESR 缓冲区错误漏洞
CVE-2020-26968 Mozilla Firefox ESR 缓冲区错误漏洞
CVE-2020-26966 Mozilla Firefox 安全漏洞
CVE-2020-26965 Mozilla Firefox 安全漏洞
CVE-2020-26964 Mozilla Firefox for Android 安全漏洞
CVE-2020-26963 Mozilla Firefox 安全漏洞
CVE-2020-26962 Mozilla Firefox 安全漏洞
CVE-2020-26961 Mozilla Firefox 安全漏洞
CVE-2020-26950 Mozilla Firefox 资源管理错误漏洞
CVE-2020-26959 Mozilla Firefox 资源管理错误漏洞
CVE-2020-26958 Mozilla Firefox ESR 跨站脚本漏洞
CVE-2020-26957 Mozilla Firefox for Android 安全漏洞
CVE-2020-26956 多款Mozilla产品跨站脚本漏洞
CVE-2020-26955 Mozilla Firefox 安全漏洞
CVE-2020-26954 Mozilla Firefox 安全漏洞
CVE-2020-26953 Mozilla Firefox 和 Mozilla Thunderbird 安全漏洞
CVE-2020-26952 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-26951 Mozilla Firefox 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2020-26967

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