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CVE-2023-33977— Stored cross site scripting (XSS) via unrestricted file upload in Kiwi TCMS

Quick assessment

Affected
kiwitcms Kiwi
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kiwi TCMS是Kiwi TCMS开源的一个用于手动和自动测试的领先开源测试管理系统。 Kiwi TCMS 12.4之前版本存在跨站脚本漏洞，该漏洞源于允许用户将附件上传到测试计划、测试用例等，为了防止上传具有潜在危险的文件，引入了 Content-Security-Policy ，但并非100%可靠。

CVSS 8.1 · High EPSS 0.87% · P57
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I. Basic Information for CVE-2023-33977

Vulnerability Information
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Vulnerability Title
Stored cross site scripting (XSS) via unrestricted file upload in Kiwi TCMS
Source: CVE Program / CVE List V5
Vulnerability Description
Kiwi TCMS is an open source test management system for both manual and automated testing. Kiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introduced upload validators in order to prevent potentially dangerous files from being uploaded and Content-Security-Policy definition to prevent cross-site-scripting attacks. The upload validation checks were not 100% robust which left the possibility to circumvent them and upload a potentially dangerous file which allows execution of arbitrary JavaScript in the browser. Additionally we've discovered that Nginx's `proxy_pass` directive will strip some headers negating protections built into Kiwi TCMS when served behind a reverse proxy. This issue has been addressed in version 12.4. Users are advised to upgrade. Users unable to upgrade who are serving Kiwi TCMS behind a reverse proxy should make sure that additional header values are still passed to the client browser. If they aren't redefining them inside the proxy configuration.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A: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
Kiwi TCMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kiwi TCMS是Kiwi TCMS开源的一个用于手动和自动测试的领先开源测试管理系统。 Kiwi TCMS 12.4之前版本存在跨站脚本漏洞，该漏洞源于允许用户将附件上传到测试计划、测试用例等，为了防止上传具有潜在危险的文件，引入了 Content-Security-Policy ，但并非100%可靠。
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
kiwitcms Kiwi < 12.4 -

II. Public POCs for CVE-2023-33977

# POC Description Source Link Shenlong Link
1 Read more at Medium https://github.com/mnqazi/CVE-2023-33977 POC Details
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III. Intelligence Information for CVE-2023-33977

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Patches & Fixes for CVE-2023-33977 (1)

Vendor Advisories for CVE-2023-33977 (2)

Other References for CVE-2023-33977 (2)

IV. Related Vulnerabilities

Same product: Kiwi
Same vendor: kiwitcms
Same weakness: CWE-79

V. Comments for CVE-2023-33977

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