CVE-2026-113384

Deferred Deferred - Pending Action

Open Redirect Vulnerability in OptimalCloud 5.0

Publication date: 2026-10-20

Last updated on: 2026-10-22

Assigner: VulDB

Description

A flaw has been found in Optimal IdM OptimalCloud 5.0. This vulnerability affects unknown code of the file /v5.0/social. Executing a manipulation of the argument state can lead to open redirect. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-20

Last Modified

2026-10-22

Generated

2026-11-09

AI Q&A

2026-10-20

EPSS Evaluated

2026-11-08

NVD

CVE-2026-113384

EUVD

EUVD-2026-104931

Affected Vendors & Products

Vendor	Product	Version / Range
Optimal IdM	OptimalCloud	5.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-601	The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

Attack-Flow Graph

Executive Summary

This vulnerability is an open redirect flaw in Optimal IdM OptimalCloud 5.0. It involves manipulating the 'state' argument in the /v5.0/social file, which can redirect users to unintended websites. The attack is remote and requires no authentication.

Detection Guidance

This vulnerability involves an open redirect in OptimalCloud 5.0 via manipulation of the 'state' parameter. To detect it, monitor web server logs for unusual redirects or requests to /v5.0/social with modified 'state' parameters. Check for unexpected external domain redirects in application logs.

Impact Analysis

An attacker could trick users into visiting malicious sites via a legitimate-looking link. This may lead to phishing attacks, credential theft, or malware downloads. Users could unknowingly expose sensitive data.

Compliance Impact

The vulnerability allows open redirect attacks, which could potentially be exploited to deceive users or bypass security controls. This may impact compliance with GDPR by increasing risks of phishing or unauthorized data access, and with HIPAA by potentially exposing protected health information through manipulated redirects. However, specific compliance impacts depend on implementation and mitigation measures.

Mitigation Strategies

Immediately update OptimalCloud to the latest patched version if available. If no patch exists, disable or restrict access to the /v5.0/social endpoint. Implement input validation to block malicious 'state' parameter values. Monitor for exploitation attempts in logs.

Hi! I’m here to help you understand CVE-2026-113384. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...