CVE-2026-91555

Awaiting Analysis Awaiting Analysis - Queue

Cross-Site Scripting in Oracle BI Publisher

Publication date: 2026-10-20

Last updated on: 2026-10-26

Assigner: Oracle

Description

Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: Web Server). Supported versions that are affected are 8.2.0.0.0, 12.2.1.4.0 and 26.01.0.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle BI Publisher. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle BI Publisher, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle BI Publisher accessible data as well as unauthorized read access to a subset of Oracle BI Publisher accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-20

Last Modified

2026-10-26

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91555

EUVD

EUVD-2026-106781

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle BI Publisher	8.2.0.0.0
Oracle Corporation	Oracle BI Publisher	12.2.1.4.0
Oracle Corporation	Oracle BI Publisher	26.01.0.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-352	The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle BI Publisher, a web server component of Oracle Analytics. It affects versions 8.2.0.0.0, 12.2.1.4.0, and 26.01.0.0.0. An unauthenticated attacker can exploit it via HTTP to compromise the system. Exploitation requires human interaction from a victim and may impact other products.

Detection Guidance

Detection involves checking for vulnerable versions of Oracle BI Publisher (8.2.0.0.0, 12.2.1.4.0, or 26.01.0.0.0) and monitoring for unauthorized access attempts via HTTP. Inspect server logs for unusual activity or requests targeting Oracle BI Publisher endpoints.

Impact Analysis

An attacker could gain unauthorized access to modify, insert, or delete data in Oracle BI Publisher. They could also read a subset of data. This requires tricking a user into interacting with a malicious request.

Compliance Impact

This vulnerability allows unauthorized read, insert, update, or delete access to Oracle BI Publisher data, which could lead to exposure or manipulation of sensitive information. This may violate compliance requirements under GDPR (data protection) or HIPAA (healthcare data privacy) if such data is compromised.

Mitigation Strategies

Apply the latest security patches from Oracle for affected versions of BI Publisher (8.2.0.0.0, 12.2.1.4.0, 26.01.0.0.0). Disable unnecessary network access to the Oracle BI Publisher web server and restrict HTTP access to trusted sources only.

Hi! I’m here to help you understand CVE-2026-91555. 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...