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How CVE-2026-46851 Works
CVE-2026-46851 is a critical vulnerability affecting the Security component of Oracle PeopleSoft Enterprise CS Campus Community version 9.2.38. The flaw allows an unauthenticated attacker with network access via HTTP to compromise the PeopleSoft Enterprise CS Campus Community system. Despite being labeled as “difficult to exploit” (Attack Complexity: High), the vulnerability does not require any privileges or user interaction, making it a severe risk.
The attack vector is entirely network-based (AV:N) over HTTP, meaning no physical or local access is required. The high attack complexity (AC:H) suggests that exploitation requires specific conditions or technical sophistication, but skilled attackers can still leverage this weakness. The absence of privilege requirements (PR:N) and user interaction (UI:N) indicates that the attack can be automated without user involvement.
Successful exploitation results in a complete system takeover of the affected PeopleSoft Enterprise CS Campus Community instance. The CVSS 3.1 Base Score of 8.1 (High) reflects substantial risks to confidentiality, integrity, and availability, all rated as High (C:H/I:H/A:H). The vulnerability aligns with CWE-284 (Improper Access Control) and CWE-312 (Sensitive Data Exposure). Once compromised, attackers can access sensitive student records, manipulate course registrations, disrupt educational services, establish backdoors, or use the compromised system as a pivot point for further network attacks.
The vulnerability was published on June 17, 2026, as part of the Oracle June 2026 Critical Security Patch Update. Notably, this CVE exists alongside active exploitation of another PeopleSoft vulnerability (CVE-2026-35273, CVSS 9.8) by the threat actor ShinyHunters (UNC6240), which breached over 100 organizations—68% of which were universities and colleges—between May and June 2026. This context makes patching CVE-2026-46851 exceptionally urgent for higher education institutions and enterprises with internet-exposed PeopleSoft deployments.
DailyCVE Form:
Platform: Oracle PeopleSoft Enterprise
Version: 9.2.38 only
Vulnerability: Remote Code Execution
Severity: Critical (8.1)
date: 2026-06-17
Prediction: 2026-07-31
What Undercode Say:
Check PeopleSoft Enterprise CS Campus Community version SELECT VERSION FROM PSVERSION WHERE PRODUCT = 'PeopleSoft Enterprise CS Campus Community'; Verify if system is vulnerable (version 9.2.38) curl -k -X GET https://<target>/psc/cs/EMPLOYEE/SA/s/WEBLIB_PTBR.ISCRIPT1.FieldFormula.IScript_GetVersion Monitor for anomalous HTTP requests targeting Security component grep -E "GET.(ISCRIPT|PTBR|Security)" /var/log/peoplesoft/http_access.log Search for unauthorized admin activity in audit logs grep -E "ROLE.ADMIN|PRIVILEGE.ESCALATION" /var/log/peoplesoft/audit.log Network traffic capture for suspicious HTTP POST to /psc/cs/ tcpdump -i any -s 0 -A 'tcp dst port 80 and (dst host <target>)' -w cve-2026-46851.pcap
Example Python snippet to check for vulnerable PeopleSoft endpoint responses
import requests
target = "https://<peoplesoft-instance>/psc/cs/EMPLOYEE/SA/s/"
payloads = ["WEBLIB_PTBR.ISCRIPT1", "PT_SECURITY", "PS_TOKEN"]
for p in payloads:
r = requests.get(target + p, verify=False, timeout=10)
if r.status_code == 200 and "Security" in r.text:
print(f"[!] Potentially vulnerable endpoint: {p}")
Exploit:
At present, no public proof-of-concept (PoC) or active exploit has been identified for CVE-2026-46851. The vulnerability is considered difficult to exploit due to its high attack complexity, requiring specific non-default conditions. However, the lack of authentication requirements (PR:N) and user interaction (UI:N) makes it an attractive target for skilled attackers. The estimated exploit price range is USD $0–$5k. The attack is initiated remotely over HTTP without any form of authentication. Successful exploitation yields complete system takeover, including full access to sensitive campus community data. Organizations should assume that threat actors are actively probing for vulnerable instances, especially given the concurrent ShinyHunters campaign targeting PeopleSoft infrastructure.
Protection:
- Immediate Patching: Apply the Oracle June 2026 Critical Security Patch Update (CSPU) referenced as CPU167, available via My Oracle Support. Upgrade PeopleSoft Enterprise CS Campus Community to a version beyond 9.2.38.
- Network Segmentation: Restrict internet-facing access to PeopleSoft Campus Community interfaces at the network perimeter; limit HTTP access to trusted source IPs only.
- Monitoring: Implement continuous monitoring for anomalous authentication events, unexpected administrative activity, and unusual HTTP requests targeting Security-related components within Campus Community.
- Access Controls: Enforce strict network access control lists (ACLs) and web application firewall (WAF) rules to block suspicious HTTP traffic patterns to `/psc/cs/` endpoints.
- Vulnerability Scanning: Use external exposure management platforms (e.g., IONIX) to identify and verify potentially exposed PeopleSoft assets.
Impact:
- Confidentiality (High): Unauthorized access to sensitive student records, personal information, confidential communications, and institutional data.
- Integrity (High): Attackers can modify critical system data, manipulate course registrations, alter configuration settings, and tamper with campus community records.
- Availability (High): Complete denial of service; system can be rendered unusable, disrupting educational services for thousands of students, faculty, and administrative staff.
- Operational Disruption: Potential for backdoor installation, malware deployment, and use of compromised system as a launching point for further attacks within the organization’s network.
- Compliance & Reputation: Regulatory penalties (GDPR, FERPA), reputational damage, and substantial incident response and system restoration costs.
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Sources:
Reported By: nvd.nist.gov
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