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CVE-2025-2833— zhangyd-c OneBlog HTTP Header redos

Quick assessment

Affected
zhangyd-c OneBlog
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.

OneBlog是yadong.zhang个人开发者的一个漂亮、功能强大的Java博客。 OneBlog 2.3.9及之前版本存在安全漏洞，该漏洞源于对X-Forwarded-For参数的错误操作会导致正则表达式复杂性不足。

CVSS 5.3 · Medium EPSS 0.71% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-2833

Vulnerability Information
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Vulnerability Title
zhangyd-c OneBlog HTTP Header redos
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in zhangyd-c OneBlog up to 2.3.9. It has been classified as problematic. Affected is an unknown function of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-For leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
OneBlog 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OneBlog是yadong.zhang个人开发者的一个漂亮、功能强大的Java博客。 OneBlog 2.3.9及之前版本存在安全漏洞，该漏洞源于对X-Forwarded-For参数的错误操作会导致正则表达式复杂性不足。
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
zhangyd-c OneBlog 2.3.0 -

II. Public POCs for CVE-2025-2833

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III. Intelligence Information for CVE-2025-2833

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Vendor Advisories for CVE-2025-2833 (3)

Proof of Concept for CVE-2025-2833 (1)

IV. Related Vulnerabilities

Same product: OneBlog
Same vendor: zhangyd-c
Same weakness: CWE-1333

V. Comments for CVE-2025-2833

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