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JeecgBoot EUVDEUVD-2026-96605

| CVE-2026-108666 MEDIUM
Missing Authorization (CWE-862)
2026-10-10 VulnCheck GHSA-g34v-99hm-jj22
5.3
CVSS 4.0 · Vendor: VulnCheck
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as low-privileged user
  2. Exploit
    Enumerate template IDs via unguarded list endpoint
  3. Execution
    Submit IDs to deleteBatch (no authz check)
  4. Impact
    Delete other users' AI prompt templates

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires a valid authenticated JeecgBoot account of any privilege level (CVSS PR:L) - exploitation is impossible for fully unauthenticated attackers. The attacker must reach the AiragBoot AI prompts module: the list endpoint must be accessible to obtain prompt template IDs, and the AiragPromptsController deleteBatch handler must be exposed, which it is by default in JeecgBoot through 3.9.5. No special non-default configuration, no user interaction, and no elevated role are needed. The practical limiting factor is account provisioning: risk is meaningful mainly in multi-tenant or broadly self-registering deployments where low-privileged accounts coexist with admin-created prompt templates.

Impact

This is a genuine but modest-priority issue, not a high-CVSS alarm. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N) and CWE-862 agree with the description: a network-reachable, low-complexity flaw requiring only a low-privileged authenticated account and no user interaction. Impact is correctly scoped to integrity and availability of AI prompt templates (VI:L/VA:L) with no confidentiality loss (VC:N) and no scope change, yielding a legitimate MEDIUM 5.3. A public PoC (VulnCheck/github-poc) raises practical exploitability, but this signals only that exploit code exists - it is NOT evidence of active exploitation. No CISA KEV listing and no EPSS score were provided; absence of KEV plus the authenticated-only, limited-data-destruction impact means this is unlikely to see mass automated exploitation. The main caveat: exploitation depends on an attacker already holding a valid low-privileged JeecgBoot account, which bounds real-world risk to multi-tenant or broadly-provisioned deployments. CVSS and description are internally consistent - no conflicting signals requiring vendor verification.

Exploit ScenarioDerived

A low-privileged but authenticated JeecgBoot user queries the unguarded AI prompt list endpoint to enumerate prompt template IDs belonging to administrators or other users, then submits those IDs to the deleteBatch handler of AiragPromptsController, which performs no ownership or role check and deletes them. A public Python PoC (poc_airag_prompts_delete_batch.py) automates this. Because the vector is network, low-complexity, and needs no user interaction, any authenticated account can destroy others' templates in a single request.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 10, 2026

Missing authorization in JeecgBoot through 3.9.5 allows any authenticated user, regardless of role, to delete administrator-created AI prompt templates through the deleteBatch handler of AiragPromptsController. The unguarded list endpoint lets a low-privileged attacker enumerate prompt IDs and feed them to deleteBatch, destroying templates belonging to admins or other tenants; exploitation requires only a valid account (CVSS vector PR:L) and no user interaction or elevated role. Publicly available exploit code exists (a PoC script targeting the deleteBatch endpoint has been published), but there is no confirmation of active exploitation in the wild, and the practical risk is concentrated in multi-tenant or self-registering deployments where low-privileged accounts coexist with administrator content.

RemediationAI

No vendor-released patch or fixed version is identified in the available data, so remediation must start with compensating controls while tracking the VulnCheck advisory (https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-airag-prompts-deletebatch) for an upstream fix. The most direct mitigation is to add an authorization check - for example an admin/owner permission annotation or an explicit ownership comparison - to the deleteBatch method in AiragPromptsController (and to the list endpoint used for ID enumeration), since the vulnerable handler at lines 131-137 performs no such validation; note this requires maintaining a local code patch across upgrades. If the AI prompts feature is not in use, disable or undeploy the jeecg-boot-module-airag module, which removes the attack surface entirely but disables all AI prompt functionality. Where the module is required, restrict network access to the airag prompts endpoints (blocking external/untrusted clients via reverse proxy, gateway rules, or firewall) - effective against external attackers but not against malicious low-privileged internal users. Finally, reduce the pool of attackable accounts by tightening account provisioning: disable or gate open self-registration and audit/limit low-privileged accounts in multi-tenant deployments, and monitor for unexpected deletion requests to the deleteBatch endpoint as a detection backstop; these measures lower likelihood but do not fix the underlying missing authorization. A publicly available PoC (https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_airag_prompts_delete_batch.py) should be treated as proof that exploitation is trivial for any authenticated user.

Affected VersionsENISA

JeecgBoot 0 ≤3.9.5

Affected Packages

euvd jeecgboot no fix

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

JeecgBoot is a Spring Boot-based low-code development platform whose optional AiragBoot module manages AI prompt templates; the affected code lives in jeecg-boot-module-airag under org.jeecg.modules.airag.prompts.controller.AiragPromptsController (deleteBatch handler, lines 131-137 of the referenced commit). The root cause is CWE-862 (Missing Authorization): the controller method performs no ownership or permission check, so any caller holding a valid session can delete arbitrary prompt records, while the companion list endpoint exposes prompt IDs without authorization as well. Authentication is enforced by the platform (the assessed vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L), but authorization is not, so the vulnerability is a horizontal/vertical privilege failure rather than an authentication bypass - the 'Authentication Bypass' tag in the source data reflects the missing authorization check, not a lack of login. Impact is limited to integrity and availability of AI prompt template data (no confidentiality impact, no scope change), consistent with the modest CVSS score of 5.3.

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Severity by source

Vendor (VulnCheck) PRIMARY 5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
vuln.today AI 5.4 MEDIUM

Network-reachable handler, low complexity, needs a low-privileged authenticated account (PR:L), no UI; deleting templates harms integrity and availability only, so C:N/I:L/A:L.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
Low
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the deleteBatch handler of AiragPromptsController that allows any authenticated user to delete AI prompt templates. Low-privileged attackers can obtain prompt ids from the unguarded list endpoint and pass them to deleteBatch to remove templates created by administrators or other users.

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Prevalence
Medium
popular open-source low-code platform, moderate real-world deployment footprint
Exploit
POC
Public exploit code exists
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

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.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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