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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-1305

21
FAUCET Score

CVE-2026-1305 describes an Improper Authentication vulnerability in the Japanized for WooCommerce WordPress plugin, affecting versions up to and including 2.8.4. A flaw in the paidy_webhook_permission_check function allows unauthenticated attackers to bypass payment verification by omitting the webhook signature header. This enables fraudulent marking of orders as "Processing" or "Completed" without actual payment. The vulnerability has a CVSS score of 5.3 (Medium), indicating a network-based attack with low complexity and no user interaction required, leading to a potential impact on integrity (I:L). While the EPSS score is low, suggesting a low probability of exploitation, the vulnerability could allow attackers to defraud businesses. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion is minimal, with only one mention identified, and there is no media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
ShoheitanakaJapanized For WooCommerce
>= 0, <= 2.8.4CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 20th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/woocommerce-for-japan/tags/2.8.2/includes/gateways/paidy/class-wc-paidy-endpoint.php
plugins.trac.wordpress.org / browser/woocommerce-for-japan/tags/2.8.2/includes/gateways/paidy/class-wc-paidy-endpoint.php
plugins.trac.wordpress.org / browser/woocommerce-for-japan/trunk/includes/gateways/paidy/class-wc-paidy-endpoint.php
plugins.trac.wordpress.org / browser/woocommerce-for-japan/trunk/includes/gateways/paidy/class-wc-paidy-endpoint.php
plugins.trac.wordpress.org / changeset/3464868/woocommerce-for-japan/trunk/includes/gateways/paidy/class-wc-paidy-endpoint.php
wordfence.com / threat-intel/vulnerabilities/id/8cef4b2b-ae8d-4e18-b763-6960a0b944f7