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Digits (WordPress plugin) EUVDEUVD-2026-44897

| CVE-2026-13741 HIGH
Improper Privilege Management (CWE-269)
2026-07-16 Wordfence GHSA-9xxr-jm2h-93xc
8.8
CVSS 3.1 · Vendor: Wordfence
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Attack ChainAIDerived

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

  1. Access
    Register or obtain Subscriber account
  2. Delivery
    Access profile update endpoint
  3. Exploit
    Submit forged digits_reg_userrole=administrator
  4. Execution
    dig_update_wpwc_custom_fields writes role unchecked
  5. Persist
    Account elevated to Administrator
  6. Impact
    Full site takeover

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
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

Exploitation requires (1) an authenticated account of at least Subscriber level - obtainable via self-registration where the site permits it - and (2) the site administrator having configured the plugin's built-in DIGITS User Role field, which activates the vulnerable profile-update path. The concrete trigger is submitting a forged digits_reg_userrole parameter (e.g. value 'administrator') to the dig_update_wpwc_custom_fields() handler during a profile update. Limiting factors: this is NOT exploitable against default/unconfigured installs (the DIGITS User Role field must be enabled), and it requires a valid low-privileged login rather than being fully unauthenticated (PR:L in the CVSS vector); no user interaction from a victim is needed.

Impact

The CVSS 3.1 base score is 8.8 (High) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - network-reachable, low complexity, requires only low privileges (an existing Subscriber account), no user interaction, and full C/I/A impact. This is a genuine priority rather than an inflated high-CVSS issue: the exploitation path is a single authenticated request and the payoff is Administrator, which on WordPress typically leads to full site and often server compromise via plugin/theme editing. Tempering factors: exploitation requires the site to allow user registration (to obtain the Subscriber account) AND the administrator to have configured the built-in DIGITS User Role field - so vulnerable-in-practice sites are a subset of installs. No EPSS score, KEV listing, or SSVC decision data was provided, and no public exploit is identified at time of analysis, so real-world exploitation likelihood cannot be quantified from the input; the assessment rests on the CVSS vector and the description's explicit precondition.

Exploit ScenarioDerived

An attacker registers a normal account (Subscriber) on a WordPress site running a vulnerable Digits version that has the DIGITS User Role field configured, then sends a crafted profile-update request that includes digits_reg_userrole set to 'administrator'. Because dig_update_wpwc_custom_fields() does not check authorization or validate the role, the account is elevated to Administrator, giving the attacker full control of the site. No public exploit code is identified at time of analysis, but the attack is a single low-complexity authenticated request.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 16, 2026

Privilege escalation in the Digits WordPress Mobile Number Signup and Login plugin (all versions through 9.1.0.5) lets authenticated Subscriber-level users promote themselves to Administrator by submitting a forged digits_reg_userrole value during a profile update. The flaw stems from the dig_update_wpwc_custom_fields() function failing to validate the caller's authorization or the requested role. There is no public exploit identified at time of analysis, but the low barrier (any registered user on an affected site with the DIGITS User Role field configured) and full-administrator outcome make this a high-priority patching item.

RemediationAI

No exact fixed version is stated in the provided data, so treat this as: upstream fix status not independently confirmed - upgrade to the latest Digits release above 9.1.0.5 and verify against the vendor changelog (https://digits.unitedover.com/changelog/) that the build post-dates the fix for this issue. As an interim compensating control, disable/unconfigure the built-in DIGITS User Role custom field, which removes the exploitable code path (trade-off: sites relying on that field for role assignment lose that functionality). Additionally, temporarily disable open user registration or set the default new-user role handling to be tightly controlled to shrink the pool of Subscriber accounts an attacker can leverage, and audit existing user accounts for unexpected Administrator role changes. Review the Wordfence advisory (https://www.wordfence.com/threat-intel/vulnerabilities/id/02a283b2-a369-4927-a54a-61f26bee6ace?source=cve) for indicators and definitive fix version once published.

Affected VersionsENISA

Digits: WordPress Mobile Number Signup and Login 0 ≤9.1.0.5

Affected Packages

euvd digits_wordpress_mobile_number_signup_and_login 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

Digits is a commercial WordPress authentication plugin that adds mobile-number-based OTP signup/login and profile management, published by UnitedOver (CPE: cpe:2.3:a:unitedover:digits:...). The vulnerable code path is dig_update_wpwc_custom_fields(), which handles saving custom user-profile fields - including a built-in 'DIGITS User Role' field. The root cause is CWE-269 (Improper Privilege Management): the function trusts a user-supplied digits_reg_userrole parameter and writes it to the account's role without a capability/authorization check (e.g. current_user_can) or an allow-list validating that a Subscriber may not assign the administrator role. In WordPress, the role determines all capabilities, so any code path that lets a low-privileged user set their own role is effectively a full account-takeover primitive.

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Severity by source

Vendor (Wordfence) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 8.8 HIGH

Remote authenticated Subscriber (PR:L) sends a single low-complexity request with no user interaction to gain Administrator, yielding full C/I/A impact on the same site (S:U).

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

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

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

DescriptionCVE.org

The Digits: WordPress Mobile Number Signup and Login plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 9.1.0.5. This is due to missing authorization and role validation in the dig_update_wpwc_custom_fields() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to Administrator by submitting a forged digits_reg_userrole value during profile update, granted the site administrator has configured the built-in DIGITS User Role field.

Executive ViewAI

Why It Matters

The Digits WordPress Mobile Number Signup and Login plugin (versions through 9.1.0.5) contains a privilege-escalation vulnerability allowing any authenticated Subscriber-level user to self-promote to Administrator without authorization. This flaw creates a direct path to complete site compromise, enabling attackers to modify configuration, install backdoors, or access sensitive data hosted on the WordPress installation. Organizations running this plugin require immediate risk assessment and mitigation.

Business Impact: High
Compensating Controls

Disable the DIGITS User Role field configuration if not required for business operations; restrict user registration and pause new Subscriber account creation to limit the attack surface; implement strict access controls on the WordPress user profile-update endpoint to prevent unauthorized role modifications; deploy comprehensive audit logging on all user role assignments and Administrator account changes; consider immediate plugin deactivation if the plugin is not mission-critical, pending vendor security patch release.

Threat Intelligence Overview

EPSS Score
0.2%
Top 84% exploitable
Prevalence
Medium
commercial WordPress login/OTP plugin, moderate but not universal install base
Social Media
2
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 HIGH
CISA KEV No
Public POC No
EPSS 0.2%
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
Total

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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