Which versions of Thread Redirect are affected by CVE-2018-25116?

Organizations using MyBB Thread Redirect Plugin 0.2.1 should be aware of moderate risk from CVE-2018-25116, a cross-site scripting vulnerability rated CVSS 6.1.

Is there a public PoC exploit available for CVE-2018-25116?

Yes, a public proof-of-concept exploit is available for CVE-2018-25116. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2018-25116?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Thread Redirect CVE-2018-25116

Q: What is the CVSS score of CVE-2018-25116?

CVE-2018-25116 has a CVSS 4.0 base score of 5.1 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-23 disclosure@vulncheck.com

XSS Thread Redirect

5.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.1 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Scope

Lifecycle Timeline

PoC Detected

Apr 09, 2026 - 14:12 vuln.today

Public exploit code

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 23, 2026 - 17:15 nvd

MEDIUM 5.1

DescriptionCVE.org

MyBB Thread Redirect Plugin 0.2.1 contains a cross-site scripting vulnerability in the custom text input field for thread redirects. Attackers can inject malicious SVG scripts that will execute when other users view the thread, allowing arbitrary script execution.

AnalysisAI

custom text input field for thread redirects. Attackers can inject malicious SVG scripts is affected by cross-site scripting (xss) (CVSS 6.1).

Technical ContextAI

This vulnerability (CWE-79: Cross-site Scripting (XSS)) affects custom text input field for thread redirects. Attackers can inject malicious SVG scripts. MyBB Thread Redirect Plugin 0.2.1 contains a cross-site scripting vulnerability in the custom text input field for thread redirects. Attackers can inject malicious SVG scripts that will execute when other users view the thread, allowing arbitrary script execution.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

CVE-2018-25116 vulnerability details – vuln.today

Back