Authorization Bypass (IDOR)Weakness · CWE-639

CVE-2025-15018

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Optional Email plugin for WordPress is vulnerable to Privilege Escalation via Account Takeover in all versions up to, and including, 1.3.11. This is due to the plugin not restricting its 'random_password' filter to registration contexts, allowing the filter to affect password reset key generation. This makes it possible for unauthenticated attackers to set a known password reset key when initiating a password reset, reset the password of any user including administrators, and gain access to their accounts.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Optional Email WordPress plugin (versions up to 1.3.11) has a privilege escalation vulnerability where the 'random_password' filter is not scoped to registration contexts. This allows unauthenticated attackers to manipulate the password reset key generation process by setting a predictable reset key, then forcibly resetting any user's password (including administrators) and taking over their account.

MitigationUpdate the plugin to version 1.3.12 or later which restricts the random_password filter to registration-only contexts. Until patched, consider disabling the plugin or implementing Web Application Firewall rules to detect abnormal password reset requests.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Optional Email plugin is installed
    In WordPress admin, go to Plugins > Installed Plugins and look for 'Optional Email' or check the plugins directory for the optional-email folder
    Affected if The plugin is present in the WordPress installation
  2. Determine installed plugin version
    In WordPress admin, click on the Optional Email plugin to view its details, or read the main plugin PHP file header for the Version field
    Affected if Version is 1.3.11 or lower (any version up to and including 1.3.11)
  3. Confirm password reset functionality is active
    Verify the WordPress user registration or password reset functionality is enabled on the site (WordPress Settings > General > Membership: anyone can register)
    Affected if User registration or password reset is enabled, allowing external access to these flows

A user is affected if the Optional Email plugin versions 1.3.11 or below is installed and password reset/registration functionality is accessible on the WordPress site.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the plugin to version 1.3.12 or later which restricts the random_password filter to registration-only contexts. Until patched, consider disabling the plugin or implementing Web Application Firewall rules to detect abnormal password reset requests.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,750
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-15018 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data