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Vulnerability record · CVE-2026-17506 · published 5 August 2026

CVE-2026-17506: Cross-site scripting vulnerability

The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and including, 2.15.0. This is due to the get_cell_content() function applying urldecode() after esc_url() when rendering the URL column for 404 entries — a sequence that allows percent-encoded HTML to pass URL validation and then be reconstructed as raw markup, which wp_kses_post() does not strip because it retains img elements and data-* attributes, and because the public REST endpoint /iawp/search accepts unauthenticated requests as long as they carry a signature that is itself embedded in public page HTML. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

7.2 CVSS 3.1 High EPSS 0.40% · top 68.5% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
7References
12 Aug 2026Last modified by NVD

Description

The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and including, 2.15.0. This is due to the get_cell_content() function applying urldecode() after esc_url() when rendering the URL column for 404 entries — a sequence that allows percent-encoded HTML to pass URL validation and then be reconstructed as raw markup, which wp_kses_post() does not strip because it retains img elements and data-* attributes, and because the public REST endpoint /iawp/search accepts unauthenticated requests as long as they carry a signature that is itself embedded in public page HTML. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/independent-analytics/tags/2.15.0/IAWP/REST_API.php#L458
https://plugins.trac.wordpress.org/browser/independent-analytics/tags/2.15.0/IAWP/REST_API.php#L86
https://plugins.trac.wordpress.org/browser/independent-analytics/tags/2.15.0/IAWP/Resource_Identifier.php#L126
https://plugins.trac.wordpress.org/browser/independent-analytics/tags/2.15.0/IAWP/Tables/Table.php#L142
https://plugins.trac.wordpress.org/browser/independent-analytics/tags/2.15.0/IAWP/Views/View.php#L206
https://plugins.trac.wordpress.org/changeset?reponame=&new=3627446%40independent-analytics%2Ftrunk%2FIAWP%2FUtils%2FRequ
https://www.wordfence.com/threat-intel/vulnerabilities/id/90ea5c51-e739-42c1-a276-851ad800ff00?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-17506), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.