PatchSiren cyber security CVE debrief
CVE-2026-100106 damian-gora CVE debrief
The FiboSearch – Ajax Search for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'purchased_plan' parameter in all versions up to, and including, 1.34.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the site owner has previously completed the standard Freemius opt-in flow; once that condition is met, any Subscriber can reach the vulnerable handler simply by loading /wp-admin/profile.php with the requisite query parameters.
- Vendor
- damian-gora
- Product
- FiboSearch – Ajax Search for WooCommerce
- CVSS
- MEDIUM 6.4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-10-16
- Original CVE updated
- 2026-10-16
- Advisory published
- 2026-10-16
- Advisory updated
- 2026-10-16
Who should care
WordPress site owners and administrators who use the FiboSearch – Ajax Search for WooCommerce plugin should assess the risk of exploitation and take necessary security measures to prevent attacks.
Why it matters
Defenders should prioritize verifying the presence of this vulnerability in their WordPress installations and assess the risk of exploitation. This vulnerability allows authenticated attackers to inject arbitrary web scripts, potentially leading to security breaches. Site owners and administrators should verify the presence of the vulnerable plugin, assess user roles and access levels, and consider implementing additional security measures to prevent exploitation.
- Authenticated attackers with subscriber-level access and above can inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
- Exploitation requires that the site owner has previously completed the standard Freemius opt-in flow.
- Any Subscriber can reach the vulnerable handler simply by loading /wp-admin/profile.php with the requisite query parameters.
Technical summary
The FiboSearch – Ajax Search for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'purchased_plan' parameter in all versions up to, and including, 1.34.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the site owner has previously completed the standard Freemius opt-in flow; once that condition is met, any Subscriber can reach the vulnerable handler simply by loading /wp-admin/profile.php with the requisite query parameters. Defenders should be
Defensive priority
Defenders should prioritize verifying the presence of this vulnerability in their WordPress installations and assess the risk of exploitation.
Recommended defensive actions
- Verify the presence of the FiboSearch – Ajax Search for WooCommerce plugin in your WordPress installation and check if the version is up to date.
- Assess the risk of exploitation based on the site's user roles and access levels.
- Consider implementing additional security measures to prevent exploitation, such as restricting access to the /wp-admin/profile.php page.
- Review compensating controls for exposed systems while remediation is scheduled and verified.
- Check relevant monitoring, detection, and logs for exposed assets that need extra review.
- Track exceptions, retest remediated assets, and close the item only after evidence is documented.
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
Evidence notes
The CVE record and source references provide details on the vulnerability, including the affected plugin, version 1.34.2, and exploitation requirements. The FiboSearch – Ajax Search for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'purchased_plan' parameter due to insufficient input sanitization and output escaping. Exploitability requires site owners to have completed the Freemius opt-in flow. Defenders should verify the presence of this vulnerability in their WordPress installations, assess 3
Sources and references
Verified primary and authoritative sources
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CVE-2026-100106 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-100106
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-100106 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-100106
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/assets/js/admin.js
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/assets/js/tooltip.min.js
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/vendor/freemius/wordpress-sdk/includes/class-freemius.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/vendor/freemius/wordpress-sdk/includes/fs-core-functions.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/vendor/freemius/wordpress-sdk/includes/fs-html-escaping-functions.php
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/vendor/freemius/wordpress-sdk/includes/managers/class-fs-admin-notice-manager.php
-
Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/browser/ajax-search-for-woocommerce/tags/1.34.2/vendor/freemius/wordpress-sdk/templates/admin-notice.php
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.