CVE-2021-20808
Quick assessment
Affected
Six Apart Ltd. Movable Type
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.
Six Apart Movable Type（MT）是美国Six Apart公司的一套博客系统。该系统包括多用户、评论、引用和主题等功能。 Six Apart Movable Type 存在跨站脚本漏洞，该漏洞源于在搜索屏幕中对用户提供的数据缺少有效的验证和转义。远程攻击者可利用该漏洞在易受攻击的网站诱骗受害者点击一个特制的链接，并在用户的浏览器中执行任意的HTML和脚本代码。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-20808
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Cross-site scripting vulnerability in Search screen of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.
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
Six Apart Movable Type 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Six Apart Movable Type（MT）是美国Six Apart公司的一套博客系统。该系统包括多用户、评论、引用和主题等功能。 Six Apart Movable Type 存在跨站脚本漏洞，该漏洞源于在搜索屏幕中对用户提供的数据缺少有效的验证和转义。远程攻击者可利用该漏洞在易受攻击的网站诱骗受害者点击一个特制的链接，并在用户的浏览器中执行任意的HTML和脚本代码。
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 |
|---|---|---|---|---|
| Six Apart Ltd. | Movable Type | Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium | - |
|
II. Public POCs for CVE-2021-20808
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
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Vendor Advisories for CVE-2021-20808 (1)
Other References for CVE-2021-20808 (1)
-
https://movabletype.org/news/2021/08/mt-780-681-released.html x_refsource_MISC
Same Patch Batch · Six Apart Ltd. · 2021-08-26 · 8 CVEs total
| CVE-2021-20809 | Six Apart Movable Type 跨站脚本漏洞 | |
| CVE-2021-20810 | Six Apart Movable Type 跨站脚本漏洞 | |
| CVE-2021-20811 | Six Apart Movable Type 跨站脚本漏洞 | |
| CVE-2021-20812 | Six Apart Movable Type 跨站脚本漏洞 | |
| CVE-2021-20813 | Six Apart Movable Type 跨站脚本漏洞 | |
| CVE-2021-20814 | Six Apart Movable Type 跨站脚本漏洞 | |
| CVE-2021-20815 | Six Apart Movable Type 跨站脚本漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-20808
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