Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate as low-privileged user
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DeliveryIdentify out-of-scope monitor IDs
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ExploitSend monitor-delete request
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ExecutionServer skips scope validation
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PersistDelete monitors outside assigned scope
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ImpactLoss of monitoring visibility and integrity
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
|
| Exploitation Conditions | Requires an authenticated low-privileged Applications Manager account (PR:L) with network reachability to the console/API; no user interaction is needed. Exploitation targets the service-monitor delete function, where scope/permission validation is missing, allowing deletion of monitors outside the caller's assigned scope. Limiting factors: valid credentials are mandatory (not unauthenticated), and impact is bounded to monitoring configuration integrity and partial availability of monitoring coverage rather than the monitored systems themselves. Affects versions 182000 and below. |
| Impact | CVSS 7.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L) frames this as a network-reachable, low-complexity flaw requiring only low-privilege authentication and no user interaction, with high integrity impact and partial availability impact. There is no EPSS score, no CISA KEV listing, and no public exploit identified at time of analysis, so no evidence of active or automated exploitation exists. The realistic risk is moderate and insider/tenant-scoped rather than mass-exploitable: the attacker must already hold a valid low-privileged Applications Manager account, which sharply limits the attacker population versus an unauthenticated flaw. The primary signal conflict is the CWE and tag metadata: CWE-20 (Improper Input Validation) is a poor fit for what the description plainly states is a broken permissions/scope-enforcement bug (properly CWE-862/CWE-863), and the 'Information Disclosure' tag is contradicted by the vector itself (C:N, I:H) - this is a destructive integrity/availability issue, not disclosure. Vendor self-reporting (Zoho) means the vector is unverified by a third party. Treat as a real but authenticated, targeted-abuse priority (monitoring tampering) rather than a high-CVSS internet-facing emergency. |
| Exploit ScenarioDerived | A low-privileged Applications Manager user (or an attacker who has phished/compromised such an account) issues a monitor-delete request targeting service monitors that belong to teams or scopes outside their own assignment. Because scope/permission validation is not enforced on the delete action, the request succeeds, wiping monitoring coverage for critical services. No public proof-of-concept is available, but the low attack complexity means a valid account holder could trigger it with a single crafted API/UI request. |
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Alert meAnalysisAIv1 – Sep 23, 2026
Authenticated low-privileged users can delete service monitors outside their assigned scope in ZohoCorp ManageEngine Applications Manager versions 182000 and below due to improper permission validation (CWE-20). This network-reachable flaw (CVSS 7.1, AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L) requires valid credentials and no user interaction, causing high integrity impact and partial availability loss for monitoring coverage. No public exploit code or active exploitation has been identified at time of analysis.
RemediationAI
Vendor patch available per vendor advisory: apply the fix detailed at https://www.manageengine.com/products/applications_manager/security-updates/security-updates-cve-2026-86679.html; an exact fixed version number is not provided in the available data. If immediate patching is not possible, restrict network access to the Applications Manager console and API to trusted networks (trade-off: may limit legitimate remote administration). Enforce least privilege by reviewing user roles and monitor scopes, and consider temporarily disabling the service-monitor deletion function for low-privileged users, though this may disrupt normal monitoring configuration changes. Monitor logs for unauthorized deletion attempts to detect exploitation.
Affected VersionsENISA
Affected Packages
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
ManageEngine Applications Manager is an enterprise monitoring platform that tracks applications, servers, databases, and other IT infrastructure. The vulnerability arises from CWE-20 (Improper Input Validation) in the service-monitor deletion function, where the application fails to validate that the requesting user's assigned scope includes the target monitors before processing a delete request. This allows a low-privileged user to bypass intended authorization boundaries and remove monitors they should not control. The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L) confirms it is remotely exploitable over the network with low complexity, requires low privileges, and needs no user interaction. The scope is unchanged, confidentiality is not impacted, but integrity is highly impacted (monitoring configuration can be maliciously altered) and availability is partially impacted (loss of monitoring coverage for affected systems). Affected versions are 182000 and below, as indicated by the CPE wildcard cpe:2.3:a:zohocorp:manageengine_applications_manager:*:*:*:*:*:*:*:*.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Network-reachable console/API with a low-privileged account and no interaction; unauthorized deletion destroys monitor config (I:H) and degrades monitoring availability (A:L); no data read (C:N).
Primary rating from Vendor (Zohocorp).
CVSS VectorVendor: Zohocorp
Lifecycle Timeline
2DescriptionCVE.org
ZohoCorp ManageEngine Applications Manager versions 182000 and below were vulnerable to a permissions validation issue that allowed a low-privileged user to delete service monitors outside their assigned scope.
Executive ViewAI
ZohoCorp ManageEngine Applications Manager versions 182000 and below contain an improper permission validation flaw (CVE-2026-86679) that allows authenticated low-privileged users to delete service monitors outside their assigned scope, potentially causing monitoring blind spots and degraded operational visibility. This high-severity vulnerability (CVSS 7.1) has no vendor-released patch and no public exploit identified at time of analysis, but the integrity impact is high and availability impact is partial. Leadership should care because affected monitoring coverage could delay detection of other incidents, and the flaw is network-reachable and requires only valid credentials, which many users may possess.
No vendor-released patch identified at time of analysis. Interim mitigations: restrict network access to the Applications Manager interface to trusted management networks only; enforce strict least-privilege and review low-privileged user accounts; enable and monitor audit logs for unauthorized monitor deletion events; consider temporarily disabling the service monitor deletion capability for non-administrative roles if configurable.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
A remote code execution issue was discovered in Zoho ManageEngine Applications Manager before 13.6 (build 13640). Rated
Zoho ManageEngine Applications Manager 13 before build 13500 allows SQL injection via GraphicalView.do, as demonstrated
Zoho ManageEngine Applications Manager 12 through 14 allows FaultTemplateOptions.jsp resourceid SQL injection. Rated cri
An issue was discovered in Zoho ManageEngine Applications Manager 11.0 through 14.0. Rated critical severity (CVSS 9.8),
A SQL Injection vulnerability exists in the Zoho ManageEngine Applications Manager 13 before build 13820 via the resids
A SQL Injection vulnerability exists in Zoho ManageEngine Applications Manager 13.x before build 13800 via the j_usernam
Zoho ManageEngine Applications Manager 13 before build 13500 allows Post-authentication SQL injection via the name param
An issue was discovered in Zoho ManageEngine Application Manager through 14.2. Rated high severity (CVSS 8.8), this vuln
An issue was discovered in Zoho ManageEngine OpManager through 12.4x. Rated high severity (CVSS 8.8), this vulnerability
Zoho ManageEngine Applications Manager 13 before build 13530 allows SQL injection via the /MyPage.do widgetid parameter.
Zoho ManageEngine Applications Manager 13 before build 13530 allows SQL injection via the /showresource.do resourceid pa
Zoho ManageEngine Applications Manager 13 before build 13530 allows SQL injection via the /MyPage.do?method=viewDashBoar
EUVD-2026-85293
GHSA-j25x-qmfq-r547
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB