# CVE-2026-121518: Customer Reviews for WooCommerce <= 5.127.0 - Unauthenticated Sensitive Information Exposure in 'search' Parameter

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

The Customer Reviews for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 5.127.0 via the 'search' parameter of the cr_show_more_all_reviews and cr_show_more_reviews AJAX actions. This is due to the handlers being hooked on wp_ajax_nopriv_* without a capability check (and, in the product-page handler, with a nonce check that is behind a filter defaulting to false) while passing the visitor-supplied search string straight into get_comments() as the 'search' argument, which core expands into LIKE conditions over comment_author, comment_author_email, comment_author_url, comment_author_IP and comment_content. This makes it possible for unauthenticated attackers to extract review author email addresses and IP addresses — fields WordPress and WooCommerce never expose to the public — one character at a time by observing whether the returned result set matches a probed substring.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- ivole / Customer Reviews for WooCommerce: ≥ 0; ≤ 5.127.0 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: CNA: Wordfence

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: NVD: security@wordfence.com

- CISA KEV: No listing in collected sources

- EPSS: 0.58% as of 2026-11-13; percentile 48.04%

- SSVC: exploitation none; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-200

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e93acf29-8ff0-4412-9ff0-161f154b4311?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/blocks/class-cr-all-reviews.php#L26 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/blocks/class-cr-all-reviews.php#L584 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/blocks/class-cr-all-reviews.php#L407 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L24 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L284 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L159 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L175 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset/3791702/ (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset/3791702/customer-reviews-woocommerce/trunk/includes/blocks/class-cr-all-reviews.php (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/blocks/class-cr-all-reviews.php#L26 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/blocks/class-cr-all-reviews.php#L407 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/blocks/class-cr-all-reviews.php#L584 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L159 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L175 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L24 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/customer-reviews-woocommerce/tags/5.126.0/includes/reviews/class-cr-ajax-reviews.php#L284 (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset/3791702/ (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset/3791702/customer-reviews-woocommerce/trunk/includes/blocks/class-cr-all-reviews.php (security@wordfence.com)

- https://www.wordfence.com/threat-intel/vulnerabilities/id/e93acf29-8ff0-4412-9ff0-161f154b4311?source=cve (security@wordfence.com)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-121518; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-121518; retrieved 2026-11-14; source updated 2026-11-13

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-121518; retrieved 2026-11-13; source updated Not reported

Revision: f72974a8bed171497f0d55226a581619936ab2a389da99cd780194e21186b383

Canonical: https://y2.dev/cve/CVE-2026-121518

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.