What is the CVSS score of CVE-2026-52694?

CVE-2026-52694 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.2%.

Which versions of Signature Add-On for WooCommerce are affected by CVE-2026-52694?

The Signature Add-On for WooCommerce plugin (versions 2.0 and earlier) contains an unauthenticated information disclosure vulnerability enabling attackers to extract sensitive data without…

How to fix or mitigate CVE-2026-52694?

Within 24 hours: Inventory all WordPress instances for Signature Add-On plugin versions ≤2.0 and document affected systems in production. Within 7 days: Implement Web Application Firewall rules to restrict access to vulnerable plugin endpoints; contact the plugin vendor for patch timeline; evaluate temporary plugin disablement if business function permits. Within 30 days: Apply vendor patch immediately upon release; if unavailable, deploy compensating controls including IP allowlisting, authentication middleware, or plugin replacement.

Signature Add-On for WooCommerce CVE-2026-52694

EUVD-2026-36901 HIGH

Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497)

2026-06-15 Patchstack

GHSA-rhrc-9gjf-fhp7

WordPress Information Disclosure Signature Add On For Woocommerce

7.5

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.5 HIGH

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

vuln.today AI

7.5 HIGH

Unauthenticated network request to a WordPress plugin endpoint discloses stored signature/PII data with no user interaction and no integrity or availability impact.

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

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Jun 15, 2026 - 21:26 vuln.today

CVE Published

Jun 15, 2026 - 20:19 cve.org

HIGH 7.5

DescriptionCVE.org

Unauthenticated Sensitive Data Exposure in Signature Add-On for WooCommerce <= 2.0 versions.

AnalysisAI

Unauthenticated sensitive data exposure in the Signature Add-On for WooCommerce WordPress plugin versions 2.0 and earlier allows remote attackers to retrieve protected information without credentials over the network. Reported by Patchstack and tracked as CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere), the issue carries a CVSS 7.5 score driven entirely by confidentiality impact. At time of analysis there is no public exploit identified and no CISA KEV listing, but the trivial attack complexity makes opportunistic scanning plausible.

Technical ContextAI

The affected component is the Signature Add-On for WooCommerce, a third-party WordPress plugin (CPE cpe:2.3:a:wp_e-signature:signature_add-on_for_woocommerce) that extends WooCommerce checkout/order flows with digital-signature capture, typically used to collect customer signatures on orders, contracts, or terms acceptance. CWE-497 covers the exposure of sensitive system or application data to actors who should not have access - in WordPress plugin contexts this commonly manifests as unprotected REST or admin-ajax endpoints, world-readable upload paths storing signature images/PDFs, or debug/diagnostic output that leaks configuration, file paths, or stored customer data. Because signatures are inherently tied to identity and order data, the exposed material is likely to include personally identifiable information collected at the WooCommerce checkout stage.

RemediationAI

No vendor-released patch version is independently confirmed in the supplied data - the Patchstack advisory describes the vulnerable range as '<= 2.0' but does not name a fixed release, so the most specific actionable status is 'patch availability not confirmed at time of analysis; consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/woocommerce-digital-signature/vulnerability/wordpress-signature-add-on-for-woocommerce-plugin-2-0-sensitive-data-exposure-vulnerability for the latest fixed version.' Operators should upgrade to any post-2.0 release published by the wp_e-signature vendor as soon as one is verified, and in the interim either deactivate and remove the Signature Add-On for WooCommerce plugin (the safest control, at the cost of losing in-checkout signature capture), or place a WAF/virtual-patching rule (Patchstack, Wordfence, or equivalent) in front of the WordPress site to block requests to the plugin's endpoints and restrict access to wp-content/uploads paths that may store signature artifacts. Avoid relying solely on .htaccess deny rules for the uploads directory because legitimate WooCommerce assets are often served from the same tree, which can break order receipts and emails.