CVE-2026-6711 | ryhowa Website LLMs.txt Plugin up to 8.2.6 on WordPress filter_input tab cross site scripting (EUVD-2026-24071)

VDB-358423 · CVE-2026-6711 · EUVD-2026-24071 RYHOWA WEBSITE LLMS.TXT PLUGIN UP TO 8.2.6 ON WORDPRESS FILTER_INPUT TAB CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 6.74 Summaryinfo A vulnerability identified as problematic has been detected in ryhowa Website LLMs.txt Plugin up to 8.2.6 on WordPress. Affected is the function filter_input. This manipulation of the argument tab causes cross site scripting. This vulnerability appears as CVE-2026-6711. The attack may be initiated remotely. There is no available exploit. Detailsinfo A vulnerability was found in ryhowa Website LLMs.txt Plugin up to 8.2.6 on WordPress. It has been declared as problematic. Affected by this vulnerability is the function filter_input. The manipulation of the argument tab with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is: The Website LLMs.txt plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in all versions up to, and including, 8.2.6. This is due to the use of filter_input() without a sanitization filter and insufficient output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link. The weakness was presented by Kazuma Matsumoto. It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-6711 since 04/20/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-24071). Productinfo Type WordPress Plugin Vendor ryhowa Name Website LLMs.txt Plugin Version 8.2.0 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.2.6 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.2 VulDB Meta Temp Score: 5.1 VulDB Base Score: 4.3 VulDB Temp Score: 4.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.1 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/20/2026 CVE reserved 04/21/2026 +1 days Advisory disclosed 04/21/2026 +0 days VulDB entry created 04/21/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Kazuma Matsumoto Status: Not defined CVE: CVE-2026-6711 (🔒) GCVE (CVE): GCVE-0-2026-6711 GCVE (VulDB): GCVE-100-358423 EUVD: 🔒 Entryinfo Created: 04/21/2026 09:59 Updated: 04/21/2026 10:23 Changes: 04/21/2026 09:59 (66), 04/21/2026 10:23 (1) Complete: 🔍 Cache ID: 99:C1C:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸