CVE-2025-2833: oneblog DoS — Exploit

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.

Is your site exposed to CVE-2025-2833?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

CWE-1333 CWE-1333

Affected Products

Vendor	Product	Versions
zhyd	oneblog	< 2.3.9

References

Exploits

https://github.com/zhangyd-c/OneBlog/issues/35 https://github.com/zhangyd-c/OneBlog/issues/35#issue-2914268214 https://github.com/zhangyd-c/OneBlog/issues/35 https://github.com/zhangyd-c/OneBlog/issues/35#issue-2914268214

Other References

https://vuldb.com/?ctiid.301470 https://vuldb.com/?id.301470 https://vuldb.com/?submit.521813

Frequently Asked Questions

What is CVE-2025-2833? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-2833? +

CVE-2025-2833 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-2833? +

CVE-2025-2833 affects products from zhyd, specifically: oneblog. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-2833? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-59941

Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior accept a BMP image and generates a …

CVE-2026-45802

FPDI is a collection of PHP classes that facilitate reading pages from existing PDF documents and using them as templates …

CVE-2026-42343

FastGPT is an AI Agent building platform. In versions 4.14.13 and prior, the code-sandbox component suffers from insufficient resource isolation …

CVE-2025-41361

Uncontrolled resource consumption vulnerability in IDF v0.10.0-0C03-03 and ZLF v0.10.0-0C03-04. The devices improperly handle TLS requests associated with PROCOME sockets, …

CVE-2025-41360

Uncontrolled resource consumption vulnerability in IDF v0.10.0-0C03-03 and ZLF v0.10.0-0C03-04. The device is vulnerable to a packet flooding denial of …

CVE-2024-5422

An uncontrolled resource consumption of file descriptors in SEH Computertechnik utnserver Pro, SEH Computertechnik utnserver ProMAX, SEH Computertechnik INU-100 allows …

CVE-2025-2833