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Inline Entity Form Dialog EUVDEUVD-2026-113576

| CVE-2026-107258 MEDIUM
Incorrect Authorization (CWE-863)
2026-10-30 drupal GHSA-87mj-ffj6-qhh8
5.4
CVSS 3.1 · Vendor: drupal
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Attack ChainAIDerived

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

  1. Access
    Authenticate as low-privileged Drupal user
  2. Exploit
    Directly request restricted entity-form endpoint
  3. Execution
    Bypass incorrect authorization check
  4. Impact
    Read or modify unauthorized entity data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
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 Drupal site with the Inline Entity Form Dialog contributed module installed and enabled at a version below 1.0.6, plus an authenticated low-privileged account on that site (PR:L) - exploitation is not possible for fully unauthenticated, anonymous visitors unless the site grants the relevant role to self-registered users. The specific feature path or endpoint whose authorization is incorrectly enforced is not detailed in the available sources (the advisory body was not provided); the vulnerability is described only as Incorrect Authorization enabling Forceful Browsing. Limiting factors: dependency on this specific contrib module being present, the requirement for a valid authenticated session, and partial (C:L/I:L, A:N) impact rather than full compromise.

Impact

This is a moderate-severity (CVSS 5.4), low-urgency authorization flaw rather than a top-priority emergency. The CVSS vector (AV:N/AC:L/PR:L/UI:N) indicates a network-reachable, low-complexity issue requiring an already-authenticated low-privileged account (PR:L), with partial confidentiality and integrity impact and no availability impact (C:L/I:L/A:N) and no scope change (S:U). The signals are internally consistent and point away from mass exploitation: EPSS is just 0.14% (4th percentile), there is no CISA KEV listing, and no public exploit or PoC reference appears in the input. The vuln.today decision label is 'this_month', which aligns with a routine-patch posture rather than act_now/emergency. The main caveat is scope of affected software: this is a Drupal contributed module, not Drupal core, so blast radius depends on how many sites have specifically installed the Inline Entity Form Dialog module. No conflicting signals are present; the chief limitation is that the Drupal security advisory (SA-CONTRIB-2026-199) content was not provided, so the precise mechanism of the forceful-browsing/authorization bypass is not detailed in the available sources.

Exploit ScenarioDerived

An attacker who already holds a low-privileged authenticated account on a Drupal site running the Inline Entity Form Dialog module directly requests a form or entity endpoint whose authorization check is incorrectly enforced (forceful browsing). Because the authorization control can be bypassed, the attacker views or modifies entity data they should not be permitted to reach, consistent with the limited confidentiality and integrity impact (C:L/I:L). No public exploit code or PoC reference is present in the input, and exploitation requires authentication, which limits realistic abuse to users who can register or obtain accounts.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 30, 2026

Authenticated low-privileged users can bypass intended authorization checks in Drupal's Inline Entity Form Dialog contributed module (versions 0.0.0 through 1.0.6 per the CVE description), using forceful browsing to reach restricted functionality with limited confidentiality and integrity impact. The flaw requires the module to be installed and enabled plus a valid low-privilege session (CVSS PR:L), so anonymous exploitation is not possible unless the site grants the needed role to self-registered users. No public exploit was identified at time of analysis and there is no CISA KEV entry; EPSS is 0.14% (percentile 4%), and the vendor has a patch available, making this a moderate, this-month priority rather than an emergency.

RemediationAI

Patch available per vendor advisory: apply the fixed Inline Entity Form Dialog release referenced in Drupal SA-CONTRIB-2026-199 (https://www.drupal.org/sa-contrib-2026-199); the supplied data confirms vendor patch availability but does not state an exact fixed version, and the affected-range descriptions conflict at 1.0.6, so confirm the correct target release in the advisory before upgrading. After upgrading, verify the installed module version in Drupal's status report and clear caches as appropriate for the site's deployment process. No specific workaround is described in the available sources; if an immediate update cannot be applied, the advisory is the authoritative source for any vendor-provided mitigation, and access to the module's dialog functionality should be limited to trusted authenticated roles as a temporary risk reduction measure, recognizing that this does not correct the underlying authorization flaw. This is a this-month priority (EPSS 0.14%, no KEV), not an emergency.

Affected VersionsENISA

Inline Entity Form Dialog 0.0.0 <1.0.6

Affected Packages

composer drupal/inline_entity_form_dialog fix: 1.0.6
euvd inline_entity_form_dialog fix: 1.0.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in composer, euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-863 (Incorrect Authorization) in the Drupal contributed module Inline Entity Form Dialog. The CPE cpe:2.3:a:drupal:inline_entity_form_dialog:*:*:*:*:*:*:*:* identifies the Drupal ecosystem component, and affected installations are those with the module enabled. The CVSS vector AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N indicates network reachability, low attack complexity, a low-privileged authenticated requirement, no user interaction, and limited confidentiality and integrity impact with no availability impact. Forceful browsing means directly requesting URLs or endpoints that the UI would not normally expose rather than relying on application navigation; here the authorization check for such a request is applied incorrectly. The exact endpoint, permission, and code path are not described in the available sources, so the trigger is not confirmed beyond the incorrect-authorization class. A valid low-privilege session is required; fully anonymous visitors are not affected unless the site grants the relevant role to self-registered accounts.

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Severity by source

Vendor (drupal) PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
vuln.today AI 5.4 MEDIUM

Forceful browsing requires an authenticated low-privileged account (PR:L) over the network with no user interaction; it exposes and lets an attacker alter restricted entity data (C:L/I:L) without affecting availability.

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

Primary rating from Vendor (drupal).

CVSS VectorVendor: drupal

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
CVSS changed
Oct 30, 2026 - 20:23 NVD
5.4 (MEDIUM)
Patch available
Oct 30, 2026 - 04:01 EUVD
CVE Published
Oct 30, 2026 - 03:10 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Incorrect Authorization vulnerability in Drupal Inline Entity Form Dialog allows Forceful Browsing. This issue affects Inline Entity Form Dialog versions: from 0.0.0 to 1.0.6.

Threat Intelligence Overview

EPSS Score
0.1%
Top 96% exploitable
Prevalence
Low
Drupal contributed module, not core; niche add-on with limited install base
Social Media
1
Sightings
Data Quality
4 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 No
EPSS 0.1%
Patch available Yes
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
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +27
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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