CVE-2026-9021

MEDIUM

CVSS v3.1: 5.3

NetworkNo privilegesNo user interactionMissing AuthorizationVendor advisory ref

Source data as of:

At a glance

Severity
MEDIUM
CVSS
5.3 v3.1 · NVD
EPSS
EPSS not provided by FIRST.org for this CVE
CISA KEV
No
Type
Missing Authorization · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Published
2026-07-09 · Modified: 2026-07-09
References
Jump to references (8)

CVSS / EPSS / KEV

CVSS v3.1 5.3 / 10 MEDIUM Source: NVD
EPSS — EPSS not provided by FIRST.org for this CVE Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

The Easy Invoice plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.1.19. This is due to the plugin registering the easy_invoice_accept_quote and easy_invoice_decline_quote AJAX actions via wp_ajax_nopriv_ hooks and relying solely on a quote-scoped nonce that is rendered into the publicly accessible single quote template, combined with an ownership check that is gated behind an off-by-default Pro option (easy_invoice_pro_restrict_quote_to_client). This makes it possible for unauthenticated attackers to accept or decline arbitrary published quotes — and, depending on the configured accept action, automatically convert them into invoices (and even email them to the client) — by harvesting the per-quote nonce from the public quote page and submitting it to admin-ajax.

Record details

CVE ID
CVE-2026-9021
CVSS (v3.1)
5.3 (MEDIUM)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability subscore
3.9
Impact subscore
1.4
CISA KEV
No
Weakness (CWE)
CWE-862
Affected configurations (CPE)
0
Published
2026-07-09
Modified
2026-07-09
Status
Deferred

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same weakness type (CWE)

CVE-2026-14245 CRITICAL CVSS 9.8 CVE-2026-50084 CRITICAL CVSS 9.6 CVE-2026-58473 CRITICAL CVSS 9.1 CVE-2026-12593 HIGH CVSS 8.7

Published the same year

CVE-2026-46595 CRITICAL CVSS 10.0 CVE-2026-48316 CRITICAL CVSS 10.0 CVE-2026-50086 CRITICAL CVSS 10.0 CVE-2026-50746 CRITICAL CVSS 10.0
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