Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-43543

Quick assessment

Affected
Mozilla Thunderbird
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。 Mozilla Firefox ESR存在跨站脚本漏洞，该漏洞源于使用CSP沙箱指令加载的文档可以通过嵌入额外的内容来逃避沙箱的脚本限制。此漏洞影响雷鸟< 91.4.0,Firefox ESR < 91.4.0和Firefox < 95。

AI Predicted 9.0 Difficulty: Moderate EPSS 1.35% · P69

Possible ATT&CK Techniques 1 AI

T1508
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-43543

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
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 跨站脚本漏洞
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。 Mozilla Firefox ESR存在跨站脚本漏洞，该漏洞源于使用CSP沙箱指令加载的文档可以通过嵌入额外的内容来逃避沙箱的脚本限制。此漏洞影响雷鸟< 91.4.0,Firefox ESR < 91.4.0和Firefox < 95。
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 Thunderbird unspecified ~ 91.4.0 -
Mozilla Firefox ESR unspecified ~ 91.4.0 -
Mozilla Firefox unspecified ~ 95 -

II. Public POCs for CVE-2021-43543

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-43543

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-43543 (8)

Mailing List Discussions for CVE-2021-43543 (2)

Same Patch Batch · Mozilla · 2021-12-08 · 27 CVEs total

CVE-2021-43534 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-43527 Mozilla Network Security Services 缓冲区错误漏洞
CVE-2021-43546 Mozilla Firefox 安全漏洞
CVE-2021-43545 Mozilla Firefox 安全漏洞
CVE-2021-43544 Mozilla Firefox 跨站脚本漏洞
CVE-2021-43542 Mozilla Firefox ESR 信息泄露漏洞
CVE-2021-43541 Mozilla Firefox ESR 安全漏洞
CVE-2021-43540 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-43539 Mozilla Firefox ESR 资源管理错误漏洞
CVE-2021-43538 Mozilla Firefox 竞争条件问题漏洞
CVE-2021-43537 Mozilla Firefox ESR 代码问题漏洞
CVE-2021-43536 Mozilla Firefox ESR 信息泄露漏洞
CVE-2021-43535 Mozilla Firefox 资源管理错误漏洞
CVE-2021-38503 Mozilla Firefox 安全特征问题漏洞
CVE-2021-43533 Mozilla Firefox 安全漏洞
CVE-2021-43532 Mozilla Firefox 输入验证错误漏洞
CVE-2021-43531 Mozilla Firefox 访问控制错误漏洞
CVE-2021-43530 Mozilla Firefox 跨站脚本漏洞
CVE-2021-43528 Mozilla Thunderbird 安全特征问题漏洞
CVE-2021-38510 Mozilla Firefox 命令注入漏洞

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Thunderbird
Same vendor: Mozilla

V. Comments for CVE-2021-43543

No comments yet

Leave a comment