What is the CVSS score of CVE-2026-57410?

CVE-2026-57410 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Which versions of MailerPress are affected by CVE-2026-57410?

MailerPress WordPress plugin versions 2.0.2 and earlier contain a privilege escalation vulnerability allowing authenticated users to gain administrative access to the plugin or entire WordPress site.

How to fix or mitigate CVE-2026-57410?

Within 24 hours, inventory all WordPress installations using MailerPress and identify those running version 2.0.2 or earlier; disable the plugin on production systems if functionality is not critical, or restrict administrative access to trusted administrators only. Within 7 days, enable detailed logging of user privilege changes and WordPress administration panel access, implement administrative alerts for suspicious role escalation, and restrict plugin access through firewall or role-based access control if technically feasible. Within 30 days, establish a change management process to apply the vendor patch immediately upon release, and evaluate replacing MailerPress with an alternative email plugin if vendor patch development is delayed.

MailerPress CVE-2026-57410

EUVD-2026-43482 HIGH

Incorrect Privilege Assignment (CWE-266)

2026-07-13 Patchstack

WordPress Privilege Escalation Mailerpress Wordpress Plugin

8.8

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) 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

Any authenticated low-privilege user can escalate over the network with no interaction (PR:L, AV:N, AC:L), and successful escalation yields full C/I/A impact within an unchanged scope.

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 (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Jul 13, 2026 - 10:56 vuln.today

CVE Published

Jul 13, 2026 - 08:41 cve.org

HIGH 8.8

DescriptionCVE.org

Incorrect Privilege Assignment vulnerability in MailerPress Team MailerPress mailerpress allows Privilege Escalation.This issue affects MailerPress: from n/a through <= 2.0.2.

AnalysisAI

Privilege escalation in the MailerPress WordPress plugin (versions up to and including 2.0.2) lets an authenticated low-privilege user gain higher privileges through an incorrect privilege assignment flaw. The CVSS 3.1 vector (AV:N/AC:L/PR:L) indicates a network-reachable, low-complexity attack that any authenticated user can perform, yielding full confidentiality, integrity, and availability impact - effectively a takeover of the plugin's protected functionality or the WordPress site. There is no public exploit identified at time of analysis, and the issue is not listed in CISA KEV; it was reported through Patchstack.

Technical ContextAI

The affected component is MailerPress, an email-marketing/newsletter plugin for the WordPress CMS (CPE cpe:2.3:a:mailerpress_team:mailerpress). The root cause is CWE-266 (Incorrect Privilege Assignment): the plugin grants a level of privilege that does not match what the requesting user should hold, typically because a capability check, role assignment, or authorization gate is missing or implemented incorrectly on a plugin action or REST/AJAX endpoint. In WordPress plugins this class of bug commonly appears when an action reachable by any logged-in subscriber-level user performs an operation that should be restricted to administrators, allowing the actor to elevate their effective privileges.

RemediationAI

No specific vendor-released fix version is stated in the available data, so no patched version can be independently confirmed here; consult the Patchstack advisory (https://patchstack.com/database/Wordpress/Plugin/mailerpress/vulnerability/wordpress-mailerpress-plugin-2-0-2-privilege-escalation-vulnerability?_s_id=cve) and the WordPress.org plugin page for the first release above 2.0.2 and upgrade to it as the primary remediation. Until a confirmed patched release is applied, compensating controls include disabling the MailerPress plugin entirely if the newsletter functionality is not business-critical (trade-off: email campaigns stop working), disabling open user self-registration (Settings → General → 'Anyone can register' unchecked) to remove the low-privilege attacker pool, and deploying a WAF virtual patch or restricting access to the plugin's admin-ajax/REST endpoints to trusted administrators. Auditing existing user accounts and roles for unexpected privilege changes is also advisable given the escalation nature of the flaw.