What is the CVSS score of CVE-2018-6200?

CVE-2018-6200 has a CVSS 3.0 base score of 6.1 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 3.5%.

Is there a public PoC exploit available for CVE-2018-6200?

Yes, a public proof-of-concept exploit is available for CVE-2018-6200. Prioritise patching immediately. EPSS: 3.5%.

Vbulletin CVE-2018-6200

MEDIUM

URL Redirection to Untrusted Site (Open Redirect) (CWE-601)

2018-01-25 cve@mitre.org

PHP Open Redirect Vbulletin

6.1

CVSS 3.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-601 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V3 - Web Frontend Security Redirect URL validation MITRE ATT&CK 1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could redirect users to malicious websites via URL manipulation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 3.5% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

vBulletin 3.x.x and 4.2.x through 4.2.5 has an open redirect via the redirector.php url parameter. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate redirect destinations against an allowlist, avoid using user input in redirect URLs.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Open Redirect (CWE-601), which allows attackers to redirect users to malicious websites via URL manipulation. vBulletin 3.x.x and 4.2.x through 4.2.5 has an open redirect via the redirector.php url parameter. Affected products include: Vbulletin. Version information: through 4.2.5.

Know when Vbulletin gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

DescriptionNVD

vBulletin 3.x.x and 4.2.x through 4.2.5 has an open redirect via the redirector.php url parameter.

Threat Intelligence Overview

EPSS Score

3.5%

Top 12% exploitable

Exploit

POC

Public exploit code exists

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS POC (1)

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 3.5%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +3

CVSS: +30

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Affected Products (CPE)NVD

cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*

More in Vbulletin

View all

CVE-2025-48827 CRITICAL Emergency POC

10.0 May 27

vBulletin versions 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 are vulnerable to remote code execution through crafted t

CVE-2016-6195 CRITICAL Emergency POC

9.8 Aug 30

SQL injection vulnerability in forumrunner/includes/moderation.php in vBulletin before 4.2.2 Patch Level 5 and 4.2.3 bef

CVE-2025-48828 CRITICAL Emergency POC

9.0 May 27

vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 running on PHP 8.1 or later allow unauthenticated access to protec

CVE-2015-7808 HIGH Act Now POC

7.5 Nov 24

The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PH

CVE-2013-6129 HIGH Act Now POC

7.5 Oct 19

The install/upgrade.php scripts in vBulletin 4.1 and 5 allow remote attackers to create administrative accounts via the

CVE-2013-3522 MEDIUM This Month POC

6.5 May 10

SQL injection vulnerability in index.php/ajax/api/reputation/vote in vBulletin 5.0.0 Beta 11, 5.0.0 Beta 28, and earlier

CVE-2020-17496 CRITICAL Act Now POC

9.8 Aug 12

vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbe

CVE-2020-12720 CRITICAL Emergency POC

9.8 May 08

vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control. Rated critical

CVE-2019-16759 CRITICAL Emergency POC

9.8 Sep 24

vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widge

CVE-2017-17672 CRITICAL Emergency POC

9.8 Dec 14

In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file delet

CVE-2016-6483 HIGH Act Now POC

8.6 Sep 02

The media-file upload feature in vBulletin before 3.8.7 Patch Level 6, 3.8.8 before Patch Level 2, 3.8.9 before Patch Le

CVE-2017-17671 CRITICAL Act Now POC

9.8 Dec 14

vBulletin through 5.3.x on Windows allows remote PHP code execution because a require_once call is reachable with an una

Same weakness CWE-601 – URL Redirection to Untrusted Site (Open Redirect)

View all

CVE-2017-1000117 HIGH POC

8.8

CVE-2016-5385 HIGH POC

8.1

CVE-2018-11784 MEDIUM POC

4.3

CVE-2017-3528 MEDIUM POC

5.4

CVE-2012-0518 MEDIUM

4.7

CVE-2024-21641 MEDIUM POC

6.5

CVE-2015-5354 MEDIUM POC

5.8

CVE-2024-22891 CRITICAL POC

9.8

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back