Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate with low-privilege account
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DeliveryInject payload via Application expert UI
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ExploitLure privileged user to view content
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ExecutionPayload executes in victim session
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ImpactExfiltrate critical data and impact linked products
Vulnerability Assessment
| Exploitation Conditions | Requires an authenticated low-privileged account on Oracle Trusted Answer Search 26.1 (PR:L) with access to the Application expert UI component to submit attacker-controlled content, AND requires a second, distinct user (UI:R) - typically a more privileged reviewer or administrator - to interact with/view that content for the payload to trigger. Limiting factors: exploitation is not fully attacker-driven because it depends on victim interaction, valid credentials are needed, and only version 26.1 is identified as affected; these constraints meaningfully reduce the likelihood of opportunistic mass exploitation versus the raw HIGH score. |
| Impact | This is a moderate-priority issue (CVSS 3.1 7.6, HIGH) whose real-world risk is tempered by multiple exploitation gates. The CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N) shows network reach and low attack complexity, but requires an authenticated low-privileged account (PR:L) AND human interaction from a second person (UI:R) - meaning exploitation is not fully attacker-controlled. The high score is driven primarily by the scope change (S:C) and high confidentiality impact (C:H), where the vulnerability in Oracle Trusted Answer Search can significantly impact additional products; integrity impact is only partial (I:L) and there is no availability impact (A:N). No EPSS score, CISA KEV listing, or public POC is present in the provided data, so there is no evidence of active or probable near-term exploitation - this is a high-CVSS issue without current exploitation signals. The combined PR:L + UI:R profile is characteristic of a stored cross-site-scripting / content-injection flaw where a lower-privileged user plants content that executes against a higher-privileged viewer, which is consistent with the S:C scope change and C:H impact. NOTE: the input tag 'Authentication Bypass' conflicts with the CVSS vector, which requires privileges (PR:L) rather than bypassing authentication - treat that tag as unreliable and verify the true vulnerability class with Oracle's advisory. |
| Exploit ScenarioDerived | A low-privileged authenticated user of Oracle Trusted Answer Search submits malicious content through the Application expert UI. When a higher-privileged user (e.g., an administrator or reviewer) later opens that content, the injected payload executes in the victim's authenticated context, granting access to critical data and partial modification capability, and - due to the scope change - potentially affecting additional connected Oracle products. No public exploit code was identified at time of analysis. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Oracle Trusted Answer Search 26.1 contains a high-severity Application expert UI flaw (CVSS 7.6) that allows a low-privileged authenticated attacker to submit crafted content over HTTP; when another user views that content, the attacker can gain unauthorized read access to critical data and limited insert/update/delete access, with the impact crossing a scope boundary. The attack is gated by valid low-privileged credentials and required victim interaction, so broad opportunistic exploitation is less likely; no public exploit identified at time of analysis.
RemediationAI
Apply the Oracle Critical Patch Update October 2026 fix for Oracle Trusted Answer Search 26.1 as directed in the vendor advisory (https://www.oracle.com/security-alerts/cpuoct2026.html); no separate fixed version number is provided in the input data, so verify the CPU release notes for the exact patched build. If patching cannot be applied immediately, restrict access to the Application expert UI to trusted users, enforce least privilege by minimizing low-privileged accounts, and review or moderate expert-UI content before other users view it; these controls reduce exposure but trade off collaboration functionality and require operational process changes. Monitor for unusual authenticated content submissions and anomalous data access because exploitation depends on a second user's interaction.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
The affected technology is Oracle Trusted Answer Search's Application expert UI, an HTTP-reachable interface in Oracle's enterprise answer/search product. The CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N) shows a network-based, low-complexity attack that requires an authenticated low-privileged account and a separate user's interaction; S:C indicates the vulnerable UI can affect resources beyond its own security scope, and C:H/I:L means the main impact is data confidentiality with limited integrity modification. No CWE was supplied, but the vendor's 'Authentication Bypass' tag and the expert-UI/content-interaction pattern suggest a UI-driven authorization or content-handling weakness rather than remote code execution. Version 26.1 is the only affected release identified in the input data.
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Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Network-reachable web UI (AV:N/AC:L) needs a low-privileged account (PR:L) and a second user's interaction (UI:R); scope change (S:C) to other products with full read but only partial write and no availability loss.
Primary rating from NVD.
CVSS VectorNVD
DescriptionNVD
Vulnerability in Oracle Trusted Answer Search (component: Application expert UI). The supported version that is affected is 26.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Trusted Answer Search. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Trusted Answer Search, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Trusted Answer Search accessible data as well as unauthorized update, insert or delete access to some of Oracle Trusted Answer Search accessible data. CVSS 3.1 Base Score 7.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N).
Executive ViewAI
Oracle Trusted Answer Search 26.1 contains a high-severity flaw in its expert UI that could allow crafted content to expose critical data and permit limited data changes when other users view it. The issue crosses a scope boundary and requires user interaction, so broad opportunistic exploitation is less likely, but the potential for unauthorized access to sensitive information and integrity impact warrants management attention.
Restrict expert UI access to trusted users, enforce least privilege, monitor for anomalous content submissions and views, apply WAF rules to block crafted HTTP content, enable CSP and output encoding, and isolate the application network segment.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
EUVD-2026-105919
GHSA-chvq-wggm-xpcw
NVD
CVE.org
EPSS
Exploit-DB