What is the CVSS score of EUVD-2026-37050?

EUVD-2026-37050 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.3%.

Squirrly SEO EUVD-2026-37050

| CVE-2026-52714 MEDIUM

Missing Authorization (CWE-862)

2026-06-16 Patchstack

GHSA-9qmf-rqj7-2pp7

Authentication Bypass Seo Plugin By Squirrly Seo

5.9

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

5.9 HIGH

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

vuln.today AI

5.9 MEDIUM

Network-accessible, unauthenticated broken access control with high complexity due to non-obvious endpoint; integrity-only impact with no confidentiality or availability effect confirmed.

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

4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Jun 16, 2026 - 10:24 vuln.today

Severity Changed

Jun 16, 2026 - 10:22 NVD

HIGH MEDIUM

CVSS changed

Jun 16, 2026 - 10:22 NVD

7.5 (HIGH) 5.9 (MEDIUM)

DescriptionCVE.org

Unauthenticated Broken Access Control in SEO Plugin by Squirrly SEO <= 12.4.16 versions.

AnalysisAI

Broken access control in SEO Plugin by Squirrly SEO version 12.4.16 and earlier allows unauthenticated remote attackers to perform unauthorized privileged actions, resulting in high integrity impact against affected WordPress installations. The flaw stems from missing authorization checks (CWE-862), permitting requests to restricted functionality without any credential validation. No public exploit code or active CISA KEV listing has been identified at time of analysis, though the CVSS high-complexity rating suggests exploitation requires meeting specific conditions beyond a simple direct request.

Technical ContextAI

The vulnerability exists in the SEO Plugin by Squirrly SEO WordPress plugin, identified under CPE cpe:2.3:a:seo_squirrly:seo_plugin_by_squirrly_seo:*:*:*:*:*:*:*:* covering all versions through 12.4.16. CWE-862 (Missing Authorization) is the root cause class, meaning the plugin exposes one or more privileged actions - such as modifying SEO settings, post metadata, or administrative configurations - via WordPress AJAX handlers, REST API endpoints, or admin-post hooks that fail to verify whether the requesting user holds the required capability or nonce. WordPress plugins are particularly prone to this class of flaw when developers register action hooks (wp_ajax_nopriv_ or REST routes with no permission_callback) without enforcing WordPress capability checks such as current_user_can(). The AC:H rating on the CVSS vector implies the exploit path is not trivially reliable and may require knowledge of a specific endpoint name, parameter format, or timing condition.

RemediationAI

Update the SEO Plugin by Squirrly SEO to a version beyond 12.4.16 via the WordPress plugin dashboard or by downloading the latest release from the WordPress plugin repository. The Patchstack advisory at https://patchstack.com/database/wordpress/plugin/squirrly-seo/vulnerability/wordpress-seo-plugin-by-squirrly-seo-plugin-12-4-16-broken-access-control-vulnerability should be consulted for the confirmed fixed version, as an exact patched release number was not independently verifiable from the available data. If immediate update is not feasible, consider temporarily deactivating the plugin to eliminate the attack surface, accepting the trade-off of losing SEO functionality. Alternatively, a web application firewall (WAF) rule targeting the specific vulnerable endpoint - identifiable from the Patchstack advisory - can block unauthorized requests without disabling the plugin entirely. Sites using the Patchstack WordPress security plugin may benefit from virtual patching rules published by Patchstack for this CVE.