The Relevanssi Premium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_rt' parameter in all versions up to, and including, 2.31.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the click-tracking and logging feature to be activated in the plugin settings, and exploitation is trivially accessible to unauthenticated users because a valid _rt_nonce is publicly emitted on every search-results page.
Metrics
Affected Vendors & Products
References
History
Sat, 03 Oct 2026 06:30:00 +0000
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ssvc
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Fri, 02 Oct 2026 15:15:00 +0000
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Relevanssi
Relevanssi relevanssi Wordpress-extensions Wordpress-extensions relevanssi Premium |
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Relevanssi
Relevanssi relevanssi Wordpress-extensions Wordpress-extensions relevanssi Premium |
Fri, 02 Oct 2026 07:45:00 +0000
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| Description | The Relevanssi Premium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_rt' parameter in all versions up to, and including, 2.31.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the click-tracking and logging feature to be activated in the plugin settings, and exploitation is trivially accessible to unauthenticated users because a valid _rt_nonce is publicly emitted on every search-results page. | |
| Title | Relevanssi Premium <= 2.31.4 - Unauthenticated Stored Cross-Site Scripting via '_rt' Parameter | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-10-02T07:39:25.461Z
Updated: 2026-10-02T18:06:41.989Z
Reserved: 2026-09-30T14:55:31.063Z
Link: CVE-2026-103426
Updated: 2026-10-02T18:06:36.918Z
Status : Deferred
Published: 2026-10-02T08:17:00.210
Modified: 2026-10-02T18:17:00.027
Link: CVE-2026-103426
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