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Oracle Payroll CVE-2026-46826

| EUVDEUVD-2026-33048 HIGH
Missing Authentication for Critical Function (CWE-306)
2026-05-28 oracle GHSA-9gcp-5c92-hp8c
8.8
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privileged EBS credentials
  2. Delivery
    Reach EBS HTTPS apps tier
  3. Exploit
    Send crafted request to Payroll Internal Operations endpoint
  4. Execution
    Bypass authorization in Payroll module
  5. Persist
    Read or modify payroll/banking records
  6. Impact
    Exfiltrate PII or redirect payments

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Attacker must hold valid credentials for any low-privileged Oracle E-Business Suite account (PR:L) and must be able to reach the EBS web tier over HTTPS (AV:N) - typically the Oracle HTTP Server fronting Payroll's Internal Operations component on EBS 12.2.3 through 12.2.15. No user interaction is required (UI:N) and attack complexity is low (AC:L), so no race conditions, specific timing, or unusual configuration are needed. Limiting factors: the target must be running an affected 12.2.x release of EBS with the Payroll module deployed and enabled, the attacker needs network reachability to the EBS apps tier (commonly internal-only in well-segmented deployments), and an existing authenticated account is mandatory - fully anonymous exploitation is not indicated by the CVSS vector.

Impact

CVSS 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) classes this as high-severity with easy network exploitation by any low-privileged user - a meaningful bar in EBS environments where self-service portals routinely grant employees authenticated access. EPSS and KEV data were not provided in the input, so probability of mass exploitation and confirmed in-the-wild use are unknown; no public exploit identified at time of analysis. Oracle's own description characterizes the bug as 'easily exploitable' resulting in 'takeover of Oracle Payroll,' which combined with the sensitivity of payroll data (PII, banking details, tax IDs) makes this a real priority for any organization running EBS 12.2.x, not merely a paper-high CVSS. Note that PR:L means an authenticated foothold is required - risk is materially higher where Payroll/EBS is internet-exposed or where employee self-service accounts are broadly provisioned.

Exploit ScenarioDerived

An attacker who has phished or otherwise obtained any low-privileged EBS account (for example, a standard employee self-service login) authenticates to the EBS HTTPS web tier and issues a crafted request against an Internal Operations endpoint of the Payroll module, gaining the ability to read, alter, or destroy payroll records, banking details, and tax data. Because UI:N applies, no second user must be tricked into clicking anything; one valid session is enough. No public exploit identified at time of analysis, so weaponization timeline is uncertain but historically EBS bugs see proof-of-concept activity within weeks of CPU disclosure.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – May 28, 2026

Account takeover in Oracle Payroll (component: Internal Operations) within Oracle E-Business Suite versions 12.2.3 through 12.2.15 allows a low-privileged remote attacker with HTTPS network access to fully compromise the Payroll application. The CVSS 8.8 vector indicates low complexity and no user interaction, meaning any authenticated EBS user can pivot to full confidentiality, integrity, and availability impact on Payroll. No public exploit identified at time of analysis, but the issue was disclosed in Oracle's Critical Patch Update advisory and warrants prompt patching given the sensitivity of payroll data.

RemediationAI

Apply the patch available per Oracle's May 2026 Critical Patch Update advisory (https://www.oracle.com/security-alerts/cspumay2026.html), which is the authoritative source for the specific patch identifiers for each 12.2.x release; an exact fix build number was not provided in the input data and should be confirmed against the CPU readme before deployment. As compensating controls while patching is scheduled, restrict network reachability of the EBS web tier to trusted internal networks or VPN only (eliminating opportunistic exploitation), tighten responsibility/role assignments so fewer accounts have access to Payroll-related URLs, enable EBS URL firewall (sysadmin guide chapter 6) to constrain reachable JSPs/servlets to the documented allowlist, and monitor web tier access logs for anomalous POSTs to Payroll Internal Operations endpoints. Note that restricting network access may break legitimate remote employee self-service use, and URL firewall tightening can break customizations that rely on non-allowlisted endpoints.

Affected VersionsENISA

Oracle Payroll 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_payroll no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Oracle Payroll is a module of Oracle E-Business Suite (EBS) - Oracle's on-premises ERP platform - handling employee compensation, tax withholding, and statutory reporting. The affected component is 'Internal Operations,' which typically covers backend processing endpoints reachable via the EBS web tier over HTTPS. The CWE is not assigned in the provided data, but the combination of low privileges required (PR:L), unchanged scope (S:U), and full CIA impact is consistent with authenticated injection, deserialization, or authorization-bypass flaws frequently seen historically in EBS modules. CPE coverage (cpe:2.3:a:oracle_corporation:oracle_payroll) confirms the affected product line is the Payroll application itself rather than a shared EBS framework component.

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Severity by source

Vendor (oracle) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (oracle) · only source for this CVE.

CVSS VectorVendor: oracle

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Vulnerability in the Oracle Payroll product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle Payroll. Successful attacks of this vulnerability can result in takeover of Oracle Payroll. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Executive ViewAI

Why It Matters

A critical account takeover vulnerability in Oracle Payroll (E-Business Suite versions 12.2.3-12.2.15) allows authenticated users to gain complete control of the Payroll application, exposing sensitive employee and financial data to unauthorized access and manipulation. With no patches currently available and full impact on system confidentiality and integrity, organizations must immediately implement interim access controls while awaiting vendor remediation. This poses material risk to any enterprise managing payroll through affected Oracle EBS versions.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: restrict Payroll module access via role-based controls to essential personnel only; implement IP whitelisting or network segmentation for Payroll database connections; enable comprehensive audit logging and real-time alerting for Payroll transactions and privilege modifications; conduct weekly access reviews for Payroll module permissions; monitor Oracle Critical Patch Update advisories weekly for patch release notification.

Threat Intelligence Overview

EPSS Score
0.0%
Top 87% exploitable
Data Quality
6 sources
Confidence: High

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.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
Very High
Technical Impact
Total

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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