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CVE-2024-39899— PrivateBin allows shortening of URLs for other domains

Quick assessment

Affected
PrivateBin PrivateBin
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.

PrivateBin是一个极简的开源在线粘贴箱。 PrivateBin 1.7.4之前版本存在安全漏洞，该漏洞源于无需身份验证向公众公开身份验证令牌，从而允许任何人突破代理施加的限制。

CVSS 5.3 · Medium EPSS 0.63% · P47

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-39899

Vulnerability Information
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Vulnerability Title
PrivateBin allows shortening of URLs for other domains
Source: CVE Program / CVE List V5
Vulnerability Description
PrivateBin is an online pastebin where the server has zero knowledge of pasted data. In v1.5, PrivateBin introduced the YOURLS server-side proxy. The idea was to allow using the YOURLs URL shortener without running the YOURLs instance without authentication and/or exposing the authentication token to the public, allowing anyone to shorten any URL. With the proxy mechanism, anyone can shorten any URL pointing to the configured PrivateBin instance. The vulnerability allowed other URLs to be shortened, as long as they contain the PrivateBin instance, defeating the limit imposed by the proxy. This vulnerability is fixed in 1.7.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用基本弱点进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
PrivateBin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PrivateBin是一个极简的开源在线粘贴箱。 PrivateBin 1.7.4之前版本存在安全漏洞，该漏洞源于无需身份验证向公众公开身份验证令牌，从而允许任何人突破代理施加的限制。
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
PrivateBin PrivateBin >= 1.5.0, < 1.7.4 -

II. Public POCs for CVE-2024-39899

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III. Intelligence Information for CVE-2024-39899

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Patches & Fixes for CVE-2024-39899 (2)

Vendor Advisories for CVE-2024-39899 (1)

IV. Related Vulnerabilities

Same product: PrivateBin
Same vendor: PrivateBin
Same weakness: CWE-305

V. Comments for CVE-2024-39899

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