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CVE-2026-43937 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: May 12, 2026

YetAnotherForum.NET - SQL Injection

Published: May 12, 2026Updated: May 12, 2026Remote Exploitable

Overview

YetAnotherForum.NET < 4.0.5 contains a SQL injection caused by unvalidated binding of Editor from POST body in /Admin/RunSql OnPostRunQuery handler, letting low-privileged users execute arbitrary SQL, exploit requires low-privileged user access.

Severity & Score

Severity: High

CVSS Score: 8.8

EPSS Score: 0.0%(Probability of exploitation in next 30 days)

Impact

Low-privileged users can execute arbitrary SQL commands, potentially leading to data compromise or full database control.

Mitigation

Upgrade to version 4.0.5 or later.

References

https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5

Social Media Activity(2 posts)

TheHackerWire

@thehackerwire

May 12, 2026

🟠 CVE-2026-43937 - High (8.8) YetAnotherForum.NET (YAF.NET) is a C# ASP.NET forum. Prior to 4.0.5, Any admin OnPost… handler executes its side effects before the ResultFilterAttribute rewrites the response to a 302 to /Info/4. The most impactful abuse is /Admin/RunSql, whose... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-43937/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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TheHackerWire

@thehackerwire

May 12, 2026

View original post

Related Resources

Details

CVE ID: CVE-2026-43937
Severity: High
CVSS Score: 8.8
Type: sql_injection
Status: new
EPSS: 0.0%
Social Posts: 2

CWE

CWE-89

CVSS Metrics

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

EPSS Score

0.0%Probability of exploitation in the next 30 days