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CVE-2021-23969

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 Thunderbird是美国Mozilla基金会的一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 Mozilla Thunderbird 78.8 之前版本中存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 4.0 Difficulty: Moderate EPSS 1.21% · P66
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I. Basic Information for CVE-2021-23969

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
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 Thunderbird 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Thunderbird是美国Mozilla基金会的一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 Mozilla Thunderbird 78.8 之前版本中存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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 < 86 -
Mozilla Thunderbird < 78.8 -
Mozilla Firefox ESR < 78.8 -

II. Public POCs for CVE-2021-23969

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III. Intelligence Information for CVE-2021-23969

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Vendor Advisories for CVE-2021-23969 (7)

Mailing List Discussions for CVE-2021-23969 (1)

Same Patch Batch · Mozilla · 2021-02-26 · 25 CVEs total

CVE-2021-23959 Mozilla Firefox 跨站脚本漏洞
CVE-2021-23976 Mozilla Firefox 安全漏洞
CVE-2021-23975 Mozilla Firefox 安全漏洞
CVE-2021-23974 Mozilla Firefox 安全漏洞
CVE-2021-23973 Mozilla Thunderbird 安全漏洞
CVE-2021-23972 Mozilla Firefox 安全漏洞
CVE-2021-23971 Mozilla Firefox 安全漏洞
CVE-2021-23970 Mozilla Firefox 安全漏洞
CVE-2021-23968 Mozilla Thunderbird 安全漏洞
CVE-2021-23962 Mozilla Firefox 安全漏洞
CVE-2021-23961 Mozilla Firefox 安全漏洞
CVE-2021-23960 Mozilla Firefox 安全漏洞
CVE-2021-23964 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-23958 Mozilla Firefox 信息泄露漏洞
CVE-2021-23957 Mozilla Firefox 安全漏洞
CVE-2021-23956 Mozilla Firefox 安全漏洞
CVE-2021-23955 Mozilla Firefox 安全漏洞
CVE-2021-23954 Mozilla Firefox 安全漏洞
CVE-2021-23953 Mozilla Firefox 安全漏洞
CVE-2021-23963 Mozilla Firefox 安全漏洞

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2021-23969

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