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Forminator EUVDEUVD-2026-94955

| CVE-2026-106611 HIGH
Cross-Site Request Forgery (CSRF) (CWE-352)
2026-10-08 audit@patchstack.com GHSA-mgw9-hxq3-5vf2
7.1
CVSS 3.1 · Vendor: patchstack
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Attack ChainAIDerived

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

  1. Access
    Host malicious page with forged request
  2. Delivery
    Lure authenticated admin to click
  3. Exploit
    Browser submits request with valid session
  4. Execution
    Plugin accepts request lacking CSRF nonce
  5. Impact
    Unauthorized state change executed in admin context

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

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

Exploitation Conditions

Exploitation requires an authenticated WordPress user - realistically an administrator - to hold an active session and be induced to visit an attacker-controlled page or link while logged in (UI:R). The underlying condition is the plugin's missing or inadequate CSRF nonce validation on one or more state-changing Forminator endpoints in versions through 1.57.3. Limiting factors: the attack fails without victim interaction, cannot succeed if the targeted user is not currently authenticated, and only affects sites running Forminator at or below 1.57.3; the specific vulnerable action/endpoint is not detailed in the advisory.

Impact

This is a moderate-severity CSRF flaw (CVSS 7.1) whose risk is bounded by its reliance on victim interaction. The CVSS vector (AV:N/AC:L/PR:N/UI:R) confirms an unauthenticated network-based attack with low complexity, but UI:R means success depends on tricking an authenticated user - typically a logged-in administrator - into triggering a forged request, so this is not a wormable or self-propagating issue. Impact is asymmetric: high integrity impact (I:H) with only low confidentiality (C:L) and no availability impact (A:N), consistent with CWE-352 where an attacker forces state-changing actions rather than reading or crashing data. No EPSS score, KEV listing, SSVC decision, or POC indicator was supplied in the input, so exploitation probability cannot be quantified - the only intelligence source is a single Patchstack advisory. Treat this as a real but second-tier patching priority: it is not confirmed exploited and requires social engineering of a privileged user, so it ranks below any unauthenticated-no-interaction RCE but still warrants prompt updating on sites with active admin sessions.

Exploit ScenarioDerived

An attacker crafts a malicious web page or email link containing a forged state-changing request to a vulnerable Forminator endpoint and lures a logged-in WordPress administrator into visiting it. Because the plugin does not validate an anti-CSRF nonce, the victim's browser silently submits the request with the admin's authenticated session cookies, performing an unauthorized configuration or data-modifying action. No public exploit identified at time of analysis, and the attack cannot proceed without the victim's browser interaction.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 08, 2026

Cross-site request forgery in the WPMU DEV Forminator WordPress plugin, affecting all versions through 1.57.3, lets an unauthenticated attacker craft a malicious page that, when visited by a logged-in site administrator, silently submits state-changing requests to the vulnerable site on that administrator's behalf. The CVSS 3.1 score is 7.1 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N), reflecting high integrity impact offset by the required victim interaction and no availability impact; no public exploit code and no CISA KEV entry were identified at time of analysis, and no EPSS score was supplied. Risk is bounded by the interaction requirement: the attack fails if the targeted privileged user is not currently authenticated in a browser session while visiting the attacker-controlled page.

RemediationAI

No vendor-released patch or fixed version is identified in the available data, so the first action is to confirm current guidance on the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/forminator/vulnerability/wordpress-forminator-plugin-1-57-3-cross-site-request-forgery-csrf-vulnerability?_s_id=cve) and with WPMU DEV, then upgrade to the first release above 1.57.3 as soon as it is published. If no fixed version is yet available, apply compensating controls: deactivate and remove the Forminator plugin entirely if forms are not business-critical (the most effective mitigation, at the cost of losing all existing forms and their submission handling), or restrict state-changing Forminator functionality to a non-public staging area. Enforce SameSite=Lax or SameSite=Strict on WordPress authentication cookies so cross-site submissions do not carry the administrator session, accepting that Strict can break legitimate cross-site admin logins and some SSO flows. Limit exposure by requiring administrators to browse untrusted sites in a separate browser profile or logged-out session, and consider network-level controls such as blocking or restricting untrusted outbound access on administrator workstations. Because the attack depends on an authenticated privileged user visiting an attacker-controlled page, reducing the number of administrator accounts and avoiding day-to-day browsing in an authenticated admin session materially lowers risk while a patch is pending.

Affected VersionsENISA

Forminator 0 ≤1.57.3

Affected Packages

euvd forminator 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

The flaw is CWE-352 (Cross-Site Request Forgery), rooted in missing or inadequate anti-CSRF nonce validation on one or more state-changing Forminator endpoints in versions through 1.57.3. Forminator is a WordPress form, poll, and quiz plugin; like most WordPress plugins it relies on the platform's nonce mechanism (wp_nonce_field / check_admin_referer / wp_verify_nonce) plus the authentication cookie to distinguish a legitimate form submission from a forged one. When that token check is absent or insufficient on a handler, any external page the victim loads can auto-submit a request that the browser attaches the victim's WordPress authentication cookie to, and the plugin treats it as an authorized action. The CVSS vector confirms network reachability (AV:N), no attack complexity or attacker-side privilege requirement (AC:L, PR:N), and a mandatory user-interaction precondition (UI:R); the scope is unchanged (S:U) with low confidentiality and high integrity impact (C:L/I:H/A:N). The specific vulnerable action or endpoint is not detailed in the available advisory, and no CPE identifiers were provided in the source data.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (patchstack) PRIMARY 7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
vuln.today AI 7.1 HIGH

CSRF is network-delivered with no attacker privileges (PR:N) but needs victim interaction (UI:R); it forces state changes giving high integrity impact with limited confidentiality exposure and no availability loss.

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

Primary rating from Vendor (patchstack).

CVSS VectorVendor: patchstack

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

DescriptionCVE.org

Cross-Site Request Forgery (CSRF) vulnerability in WPMU DEV Forminator forminator allows Cross Site Request Forgery.This issue affects Forminator: from n/a through 1.57.3.

Executive ViewAI

Why It Matters

The WPMU DEV Forminator plugin for WordPress, in every version through 1.57.3, contains a cross-site request forgery flaw that lets an attacker use a decoy web page to make a logged-in site administrator silently perform privileged actions on the site without their knowledge. No vendor patch is currently available and no public exploit code has been identified, so exposure today depends on organizations running this plugin and on how many administrators browse the web while authenticated. Leadership should care because a successful attack can alter site configuration and content with no credentials and no malware, directly affecting brand integrity and any customer data or transactions the site handles.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis; interim mitigations include temporarily deactivating or removing the Forminator plugin where not business-critical, restricting wp-admin access by IP allowlist and enforcing re-authentication for privileged actions, deploying WAF or virtual-patching rules that block cross-origin state-changing requests to Forminator endpoints, requiring administrators to log out of wp-admin when idle and to avoid browsing untrusted sites while authenticated, and monitoring administrator activity, form configuration and site content for unauthorized changes.

Threat Intelligence Overview

EPSS Score
0.1%
Top 98% exploitable
Prevalence
Medium
popular WordPress form-builder plugin, common but not universal
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 HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

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