VulnerabilityPublished 13 Mar 2026

CVE-2026-0835: IBM Sterling B2B Integrator · Cross-site Scripting

Affects IBM Sterling B2B IntegratorSource CVE Database V5

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Not known to be exploited · CVSS 5.4 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

5.4Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 13 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
IBMSterling B2B Integrator	Affected >=6.1.0.0 <=6.1.2.7_2 >=6.2.0.0 <=6.2.0.5_1 >=6.2.1.0 <=6.2.1.1_1 =6.2.2.0	Fixed in–

CPE configurations (7)

cpe:2.3:a:ibm:sterling_b2b_integrator:6.1.0.0:*:*:*:standard:*:*:*
cpe:2.3:a:ibm:sterling_b2b_integrator:6.1.2.7_2:*:*:*:standard:*:*:*
cpe:2.3:a:ibm:sterling_b2b_integrator:6.2.0.0:*:*:*:standard:*:*:*
cpe:2.3:a:ibm:sterling_b2b_integrator:6.2.0.5_1:*:*:*:standard:*:*:*
cpe:2.3:a:ibm:sterling_b2b_integrator:6.2.1.0:*:*:*:standard:*:*:*
cpe:2.3:a:ibm:sterling_b2b_integrator:6.2.1.1_1:*:*:*:standard:*:*:*

AI-suggested

To mitigate CVE-2026-0835, organizations should apply the latest patches or updates from IBM as soon as they become available. In the absence of patches, implement strict access controls to limit privileged user accounts and monitor their activities closely. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within the web interface. Conduct regular code reviews and input validation audits to detect and remediate improper input handling. Enable multi-factor authentication (MFA) for all privileged users to reduce the risk of credential compromise. Additionally, monitor web application logs for unusual script injections or anomalous user behavior indicative of exploitation attempts. Educate privileged users about the risks of XSS and the importance of cautious interaction with web interfaces. Finally, segment the network to isolate critical B2B integration systems and reduce the impact of any potential compromise.

Description

IBM Sterling B2B Integrator and IBM Sterling File Gateway 6.1.0.0 through 6.1.2.7_2, 6.2.0.0 through 6.2.0.5_1, 6.2.1.0 through 6.2.1.1_1, and 6.2.2.0 are vulnerable to cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Impact

The primary impact of CVE-2026-0835 is the potential compromise of confidentiality and integrity within IBM Sterling B2B Integrator environments. An attacker with privileged access can inject malicious scripts that may steal credentials or manipulate session data, undermining trust in the application. This can lead to unauthorized access to sensitive business data, disruption of business-to-business transactions, and potential lateral movement within the network. Although availability is not directly affected, the breach of credentials or session hijacking could facilitate further attacks. Organizations worldwide that depend on IBM Sterling for critical supply chain and B2B communications could face operational disruption, data leakage, and reputational damage if this vulnerability is exploited. The requirement for privileged access and user interaction reduces the likelihood of widespread exploitation but does not eliminate risk, especially from insider threats or compromised privileged accounts.

CWE-79Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #1OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Implementation · Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages.
Architecture and Design · Implementation · Attack Surface Reduction
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide…
OWASP Cheat Sheets
Cross Site Scripting Prevention (opens in a new tab)
DOM based XSS Prevention (opens in a new tab)
Injection Prevention (opens in a new tab)
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
OWASP ASVS 4.0.3
V5.3.3 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
XSS Using MIME Type Mismatch (opens in a new tab)
DOM-Based XSS (opens in a new tab)
Reflected XSS (opens in a new tab)
Stored XSS (opens in a new tab)
Cross-Site Scripting (XSS) (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

ibm.com/support/pages/node/7263326 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

CPE configurations (7)

Description

AI analysisMachine-generated, updated 13 Mar 2026, 19:29 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

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