CVE-2026-73959: Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. in Oracle Corporation Oracle WebCenter Portal
CVE-2026-73959 is a high-severity vulnerability in Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0. It allows a low privileged attacker with network access via HTTP to compromise the portal, potentially leading to full takeover. The vulnerability affects confidentiality, integrity, and availability with a CVSS 3.1 base score of 8.8. Oracle has addressed this vulnerability in their September 2026 Critical Security Patch Update.
AI Analysis
Technical Summary
This vulnerability exists in the Composer component of Oracle WebCenter Portal within Oracle Fusion Middleware. It is exploitable remotely over the network with low privileges and no user interaction required. Successful exploitation can result in complete compromise of the Oracle WebCenter Portal, impacting confidentiality, integrity, and availability. The affected versions are 12.2.1.4.0 and 14.1.2.0.0. Oracle has released patches as part of the September 2026 Critical Security Patch Update to remediate this issue.
Potential Impact
An attacker with low privileges and network access via HTTP can exploit this vulnerability to take over Oracle WebCenter Portal. This leads to full compromise of the portal, affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability in the September 2026 Critical Security Patch Update. Users should apply the relevant patches promptly to remediate the issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed by the vendor advisory.
CVE-2026-73959: Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. in Oracle Corporation Oracle WebCenter Portal
Description
CVE-2026-73959 is a high-severity vulnerability in Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0. It allows a low privileged attacker with network access via HTTP to compromise the portal, potentially leading to full takeover. The vulnerability affects confidentiality, integrity, and availability with a CVSS 3.1 base score of 8.8. Oracle has addressed this vulnerability in their September 2026 Critical Security Patch Update.
CVSS v3.1
Score 8.8high
Affected software
Oracle Corporation
Oracle WebCenter Portal
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in the Composer component of Oracle WebCenter Portal within Oracle Fusion Middleware. It is exploitable remotely over the network with low privileges and no user interaction required. Successful exploitation can result in complete compromise of the Oracle WebCenter Portal, impacting confidentiality, integrity, and availability. The affected versions are 12.2.1.4.0 and 14.1.2.0.0. Oracle has released patches as part of the September 2026 Critical Security Patch Update to remediate this issue.
Potential Impact
An attacker with low privileges and network access via HTTP can exploit this vulnerability to take over Oracle WebCenter Portal. This leads to full compromise of the portal, affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability in the September 2026 Critical Security Patch Update. Users should apply the relevant patches promptly to remediate the issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.893Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]
Threat ID: 6aa9a80255bf5e2cf5537c1e
Added to database: 09/15/2026, 20:18:10 UTC
Last enriched: 09/15/2026, 22:32:33 UTC
Last updated: 09/16/2026, 02:20:50 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.