What is the CVSS score of EUVD-2026-15736?

EUVD-2026-15736 has a CVSS 3.1 base score of 7.3 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of a2z-fedex-shipping are affected by EUVD-2026-15736?

The a2z-fedex-shipping WordPress plugin (versions 5.1.8 and earlier) contains an unauthenticated authorization bypass that could allow attackers to access, modify, or disrupt FedEx shipping data and…

How to fix or mitigate EUVD-2026-15736?

Within 24 hours: Inventory all WordPress installations using a2z-fedex-shipping plugin and document current versions. Within 7 days: Disable or deactivate the plugin if business-critical FedEx integration can be temporarily suspended, or implement network-level access controls restricting plugin endpoints to authorized personnel only. Within 30 days: Monitor vendor (Aarsiv Groups) for patch release and apply immediately upon availability; evaluate alternative FedEx shipping integration solutions if patch timeline extends beyond risk tolerance.

a2z-fedex-shipping EUVD-2026-15736

| CVE-2026-25456 HIGH

Missing Authorization (CWE-862)

2026-03-25 Patchstack

GHSA-56w7-56c6-q9m8

Authentication Bypass Automated Fedex Live Manual Rates With Shipping Labels

7.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.3 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Updated

Apr 28, 2026 - 02:27 vuln.today

v2 (cvss_changed)

Re-analysis Queued

Apr 23, 2026 - 16:12 vuln.today

cvss_changed

CVSS changed

Apr 23, 2026 - 16:12 NVD

7.5 (HIGH) 7.3 (HIGH)

EUVD ID Assigned

Mar 25, 2026 - 16:47 euvd

EUVD-2026-15736

Analysis Generated

Mar 25, 2026 - 16:47 vuln.today

CVE Published

Mar 25, 2026 - 16:14 nvd

HIGH 7.5

DescriptionCVE.org

Missing Authorization vulnerability in Aarsiv Groups Automated FedEx live/manual rates with shipping labels a2z-fedex-shipping allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Automated FedEx live/manual rates with shipping labels: from n/a through <= 5.1.8.

AnalysisAI

Unauthenticated access control bypass in Aarsiv Groups' a2z-fedex-shipping WordPress plugin (versions ≤5.1.8) allows remote attackers to exploit incorrectly configured authorization checks, enabling unauthorized viewing, modification, or disruption of FedEx shipping data and label generation. The vulnerability is categorized as automatable with partial technical impact per SSVC framework, though EPSS scoring indicates low observed exploitation probability (0.02%, 4th percentile). Patchstack reported this CWE-862 missing authorization flaw; no active exploitation confirmed via CISA KEV at time of analysis.

Technical ContextAI

This WordPress plugin (CPE: cpe:2.3:a:aarsiv_groups:automated_fedex_live/manual_rates_with_shipping_labels) integrates FedEx shipping rate calculation and label generation into WooCommerce or similar e-commerce platforms. The vulnerability stems from CWE-862 (Missing Authorization), where security checks on sensitive operations are absent or improperly implemented. In WordPress plugin architecture, this typically manifests when AJAX handlers, REST API endpoints, or administrative functions fail to validate user permissions before processing requests. The CVSS vector indicates network-accessible endpoints (AV:N) with no authentication requirements (PR:N) and low attack complexity (AC:L), suggesting that critical shipping operations - potentially including rate queries, label generation, or configuration changes - can be invoked without proper capability checks against WordPress user roles.

RemediationAI

Upgrade to a2z-fedex-shipping plugin version 5.1.9 or later if available, verifying the patched release through WordPress.org repository or vendor communication - note that available data confirms vulnerability through 5.1.8 but does not independently verify a specific patched version number, so consult Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/a2z-fedex-shipping/vulnerability/wordpress-automated-fedex-live-manual-rates-with-shipping-labels-plugin-5-1-8-broken-access-control-vulnerability for confirmed fix version before deployment. If immediate patching is not feasible, implement compensating controls: disable the plugin entirely if FedEx shipping is non-critical to business operations (eliminates attack surface but disrupts shipping workflow); restrict plugin functionality to authenticated administrator sessions only by adding capability checks in theme functions.php or via security plugin rules (reduces exposure but requires custom code maintenance); deploy WordPress application firewall rules to block unauthenticated POST/GET requests to plugin-specific AJAX actions and REST endpoints (effective mitigation but may cause false positives requiring tuning). Monitor WordPress access logs for unexpected requests to /wp-admin/admin-ajax.php or /wp-json/ paths containing 'fedex' or 'a2z' patterns as potential exploitation indicators.