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CVE-2025-54856

Quick assessment

Affected
Six Apart Ltd. Movable Type (Software Edition)
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是美国Six Apart公司的一个应用系统。提供包含多用户，评论，引用(TrackBack)，主题等功能。 Six Apart Movable Type存在跨站脚本漏洞，该漏洞源于Edit ContentData页面存在存储型跨站脚本漏洞，可能导致执行任意脚本。

AI Predicted 4.3 Difficulty: Easy EPSS 0.23% · P13
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I. Basic Information for CVE-2025-54856

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Movable Type contains a stored cross-site scripting vulnerability in Edit ContentData page. If crafted input is stored by an attacker with "ContentType Management" privilege, an arbitrary script may be executed on the web browser of the user who accesses Edit ContentData page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
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是美国Six Apart公司的一个应用系统。提供包含多用户，评论，引用(TrackBack)，主题等功能。 Six Apart Movable Type存在跨站脚本漏洞，该漏洞源于Edit ContentData页面存在存储型跨站脚本漏洞，可能导致执行任意脚本。
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 (Software Edition) 8.4.0 to 8.4.3 (8.4 series) -
Six Apart Ltd. Movable Type Advanced (Software Edition) 8.4.0 to 8.4.3 (8.4 series) -
Six Apart Ltd. Movable Type Premium (Software Edition) 2.10 and earlier (2 series) -
Six Apart Ltd. Movable Type Premium (Advanced Edition) (Software Edition) 2.10 and earlier (2 series) -
Six Apart Ltd. Movable Type (Cloud Edition) 8.7.0 (8 series) -
Six Apart Ltd. Movable Type Premium (Cloud Edition) 2.10 (2 series) -

II. Public POCs for CVE-2025-54856

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-54856

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Vendor Advisories for CVE-2025-54856 (1)

Other References for CVE-2025-54856 (1)

IV. Related Vulnerabilities

Same product: Movable Type (Software Edition)
Same vendor: Six Apart Ltd.
Same weakness: CWE-79

V. Comments for CVE-2025-54856

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