VulnerabilityPublished 15 Sep 2026

CVE-2026-83130: Oracle Site Hub · Improper Access Control

Affects Oracle Site HubSource CVE Database V5

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Not known to be exploited · CVSS 7.1 High.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score

7.1High

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: High
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: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
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: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to 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 15 Sep 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
Oracle CorporationOracle Site Hub	Affected >=12.2.3 <=12.2.15	Fixed in–
Mavencom.oracle/ebusiness-site-hub`pkg:maven/com.oracle/ebusiness-site-hub`Other threats	Affected >=12.2.3 <=12.2.15	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle has released security patches addressing this vulnerability as part of the September 2026 Critical Security Patch Update. Customers should promptly apply the relevant patches for Oracle Site Hub versions 12.2.3 through 12.2.15 to remediate this issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the vendor advisory.

Description

CVE-2026-83130 is a vulnerability in Oracle Site Hub versions 12.2.3 through 12.2.15 that allows a low privileged attacker with network access via HTTP to compromise the system. Exploitation can lead to unauthorized creation, deletion, or modification of critical data or all accessible data within Oracle Site Hub, as well as unauthorized read access to some data. The vulnerability has a CVSS 3.1 base score of 7.1, indicating high severity with impacts on confidentiality and integrity but no impact on availability. Oracle has included this vulnerability in its September 2026 Critical Security Patch Update, which contains numerous security fixes across multiple products. Customers are strongly advised to apply the relevant patches promptly to mitigate the risk.

Impact

Successful exploitation of this vulnerability can result in unauthorized creation, deletion, or modification of critical or all accessible data within Oracle Site Hub, as well as unauthorized read access to some data. This compromises data confidentiality and integrity but does not affect availability. The vulnerability is exploitable remotely over the network with low privileges and no user interaction required, increasing the risk of compromise if unpatched.

Summary

CVE-2026-83130 affects Oracle Site Hub component of Oracle E-Business Suite, specifically versions 12.2.3 through 12.2.15. It is an easily exploitable vulnerability that allows an attacker with low privileges and network access via HTTP to gain unauthorized capabilities to create, delete, or modify critical data or all accessible data in Oracle Site Hub, as well as read unauthorized subsets of data. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N) reflects network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, limited confidentiality impact, high integrity impact, and no availability impact. Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update, which includes targeted fixes for this and many other vulnerabilities. The vendor strongly recommends applying these patches without delay to prevent exploitation.

CWE-284Improper Access Control (opens in a new tab)
Pillar weaknessCWE Top 25 (2025): #19OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design · Operation
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
OWASP Cheat Sheets
Docker Security (opens in a new tab)
Third Party Javascript Management (opens in a new tab)
Virtual Patching (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V1.4.4 (opens in a new tab)
V1.4.5 (opens in a new tab)
V1.10.1 (opens in a new tab)
Attack patterns
Embedding Scripts within Scripts (opens in a new tab)
Modification of Windows Service Configuration (opens in a new tab)
Malicious Root Certificate (opens in a new tab)
Intent Spoof (opens in a new tab)
WebView Exposure (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

oracle.com/security-alerts/cspusep2026.html (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Sep 2026, 05:40 UTC

WeaknessesCWE-284

Technical details

References

Community reviews

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