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Vulnerability record · CVE-2023-33404 · published 26 June 2023

CVE-2023-33404: Blogengine.net unrestricted file upload vulnerability

Blogengine · Blogengine.Net

An Unrestricted Upload vulnerability, due to insufficient validation on UploadControlled.cs file, in BlogEngine.Net version 3.3.8.0 and earlier allows remote attackers to execute remote code.

9.8 CVSS 3.1 Critical EPSS 26% · top 2.1% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score
26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An Unrestricted Upload vulnerability, due to insufficient validation on UploadControlled.cs file, in BlogEngine.Net version 3.3.8.0 and earlier allows remote attackers to execute remote code.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/hacip/CVE-2023-33404 ExploitThird Party Advisory
https://github.com/hacip/CVE-2023-33404 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-41417Blogengine.net missing authorization vulnerabilityBlogEngine.NET v3.3.8.0 allows an attacker to create any folder with "files" prefix under ~/App_Data/.EPSS 0.75%9.8CVE-2018-14485Blogengine.net xml external entity (xxe) vulnerabilityBlogEngine.NET 3.3 allows XXE attacks via the POST body to metaweblog.axd.EPSS 16%9.8CVE-2019-6714Blogengine.net path traversal vulnerabilityAn issue was discovered in BlogEngine.NET through 3.3.6.0. A path traversal and Local File Inclusion vulnerability in PostList.ascx.cs can cause unau…EPSS 32%9.1CVE-2022-25591Blogengine.net path traversal vulnerabilityBlogEngine.NET v3.3.8.0 was discovered to contain an arbitrary file deletion vulnerability which allows attackers to delete files within the web serv…EPSS 2.7%8.8CVE-2019-10720Blogengine.net path traversal vulnerabilityBlogEngine.NET 3.3.7.0 and earlier allows Directory Traversal and Remote Code Execution via the theme cookie to the File Manager. NOTE: this issue ex…EPSS 7.1%7.2CVE-2022-41418Blogengine.net path traversal vulnerabilityAn issue in the component BlogEngine/BlogEngine.NET/AppCode/Api/UploadController.cs of BlogEngine.NET v3.3.8.0 allows attackers to execute arbitrary …EPSS 1.2%6.5CVE-2022-28921Blogengine.net cross-site request forgery vulnerabilityA Cross-Site Request Forgery (CSRF) vulnerability discovered in BlogEngine.Net v3.3.8.0 allows unauthenticated attackers to read arbitrary files on t…EPSS 0.73%6.1CVE-2023-33405Blogengine.net open redirect vulnerabilityBlogengine.net 3.3.8.0 and earlier is vulnerable to Open Redirect.EPSS 31%

Source: NIST National Vulnerability Database (record CVE-2023-33404), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.