IBM Sterling B2B/FG 6.x Sensitive Cookie SameSite Disclosure
CVE-2025-36134 Published on November 25, 2025
IBM Sterling B2B Integrator and IBM Sterling File Gateway information disclosure
IBM Sterling B2B Integrator and IBM Sterling File Gateway 6.0.0.0 through 6.1.2.7 and 6.2.0.0 through 6.2.0.5 and 6.2.1.1 could disclose sensitive information due to a missing or insecure SameSite attribute for a sensitive cookie.
Vulnerability Analysis
CVE-2025-36134 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Sensitive Cookie with Improper SameSite Attribute
The SameSite attribute for sensitive cookies is not set, or an insecure value is used. The SameSite attribute controls how cookies are sent for cross-domain requests. This attribute may have three values: 'Lax', 'Strict', or 'None'. If the 'None' value is used, a website may create a cross-domain POST HTTP request to another website, and the browser automatically adds cookies to this request. This may lead to Cross-Site-Request-Forgery (CSRF) attacks if there are no additional protections in place (such as Anti-CSRF tokens).
Products Associated with CVE-2025-36134
stack.watch emails you whenever new vulnerabilities are published in IBM Sterling B2b Integrator or IBM Sterling File Gateway. Just hit a watch button to start following.
Affected Versions
IBM Sterling B2B Integrator:- Version 6.0.0.0, <= 6.1.2.7 is affected.
- Version 6.2.0.0, <= 6.2.0.5 is affected.
- Version 6.2.1.1 is affected.
- Version 6.0.0.0, <= 6.1.2.7 is affected.
- Version 6.2.0.0, <= 6.2.0.5 is affected.
- Version 6.2.1.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.