| Título | SeaCMS 13.6 Cross Site Scripting |
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| Descripción | SeaCMS 13.6 `err.php` reflects the user-controlled `errtxt` query parameter inside a `<textarea>` without proper HTML escaping. An unauthenticated attacker can inject `</textarea>` to break out of the element and append arbitrary HTML or JavaScript, resulting in reflected cross-site scripting when a victim opens the crafted URL. |
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| Fuente | ⚠️ https://github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d54860153321df271280daec262/c-007-errtxt-reflected-xss.md |
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| Usuario | T-Chachamaru (UID 99844) |
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| Sumisión | 2026-07-16 09:23 (hace 2 meses) |
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| Moderación | 2026-08-30 08:42 (1 month later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 397103 [SeaCMS hasta 13.6 /err.php errtxt secuencias de comandos en sitios cruzados] |
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| Puntos | 19 |
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