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CVE-2026-61008 is a critical vulnerability identified in Oracle WebCenter Sites, a component of Oracle Fusion Middleware. The flaw affects versions 12.2.1.4.0 and 14.1.2.0.0. It is characterized as an easily exploitable issue that allows an unauthenticated attacker with network access via the HTTP protocol to compromise the system. The vulnerability stems from improper access control, categorized under CWE-284. This weakness enables an attacker to bypass standard security measures, leading to severe consequences for data integrity and confidentiality.
The attack vector is network-based, requiring low attack complexity and no privileges or user interaction. Once exploited, the attacker can perform unauthorized creation, deletion, or modification of critical data. Furthermore, they can gain unauthorized access to sensitive information, potentially compromising all data accessible within the Oracle WebCenter Sites instance. The vulnerability does not have a stated impact on availability, focusing instead on the confidentiality and integrity of the data. The CVSS 3.1 base score for this vulnerability is 9.1, which is classified as Critical. The CVSS vector string is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, indicating a high severity level. Despite its critical nature, there is no evidence of active exploitation in the wild, and it is not listed in the Known Exploited Vulnerabilities (KEV) catalog. However, the risk is significant for externally reachable systems, as the attack requires no credentials and can be executed remotely. The vulnerability was published on August 18, 2026, and last modified on August 21, 2026. Oracle has released an advisory, and it is recommended that administrators review the official guidance immediately. The root cause and specific vulnerable endpoints have not been disclosed in public sources, making it crucial to rely on vendor-supplied patches and mitigations.
DailyCVE Form:
Platform: Oracle Fusion Middleware
Version: 12.2.1.4.0, 14.1.2.0.0
Vulnerability: Improper Access Control
Severity: Critical (9.1 CVSS)
Date: August 18, 2026
Prediction: August 2026 CPU
What Undercode Say:
Analytics and technical assessment of CVE-2026-61008 indicate a high-priority threat for organizations using affected Oracle WebCenter Sites versions. The following commands and codes can be used for analysis and verification:
Check for vulnerable versions
curl -s -o /dev/null -w "%{http_code}" http://target-host:port/path/to/webcenter
Enumerate WebCenter Sites version
nmap -sV --script=http-oracle-webcenter <target-ip>
Search for potential indicators of compromise
grep -r "UnauthorizedAccess" /var/log/oracle/webcenter/
Exploit: (Educational Purposes!)
While no public exploit code is available for CVE-2026-61008, the vulnerability can be exploited by sending specially crafted HTTP requests to the vulnerable WebCenter Sites endpoint. An attacker could potentially:
1. Identify the vulnerable endpoint through reconnaissance.
- Craft a malicious HTTP request designed to bypass access controls.
- Send the request to manipulate or exfiltrate critical data.
Example of a crafted request:
POST /webcenter/sites/UnauthorizedEndpoint HTTP/1.1 Host: target-host Content-Type: application/x-www-form-urlencoded action=delete&id=critical_data
Protection:
To protect against CVE-2026-61008, organizations should take the following actions:
1. Apply the security patch provided by Oracle in the August 2026 Critical Patch Update (CPU).
2. Restrict HTTP access to Oracle WebCenter Sites to trusted networks only.
3. Implement network segmentation to limit exposure of critical systems.
4. Monitor logs for any unauthorized or suspicious activity, especially unauthenticated access attempts.
5. Regularly inventory and verify the exact versions of Oracle WebCenter Sites in use.
Impact:
Successful exploitation of CVE-2026-61008 can lead to:
- Confidentiality Breach: Unauthorized access to all data accessible within Oracle WebCenter Sites, potentially exposing sensitive business information.
- Data Integrity Loss: Unauthorized creation, deletion, or modification of critical data, which can result in data corruption or loss.
- Business Disruption: While availability is not directly impacted, the compromise of data integrity and confidentiality can lead to significant operational and reputational damage.
- Regulatory Consequences: Data breaches may result in non-compliance with data protection regulations, leading to legal and financial penalties.
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Sources:
Reported By: nvd.nist.gov
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