The RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 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. WordPress's save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an <a> element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin's own comment_text filter.
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History
Thu, 23 Jul 2026 22:45:00 +0000
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Wordpress
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Wordpress
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Sat, 18 Jul 2026 03:30:00 +0000
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ssvc
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Thu, 16 Jul 2026 04:30:00 +0000
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| Description | The RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 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. WordPress's save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an <a> element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin's own comment_text filter. | |
| Title | RPB Chessboard <= 8.1.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-07-18T02:42:11.267Z
Reserved: 2026-06-23T17:22:04.111Z
Link: CVE-2026-13042
Updated: 2026-07-18T02:42:07.796Z
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OpenCVE Enrichment
Updated: 2026-07-23T22:10:49Z
Weaknesses