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CVE-2026-33517

Estado: AnalizadaAlta (8.6)—

Mantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, when deleting a Tag (tag_delete.php), improper escaping of its name when displaying the confirmation message allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript. Version 2.28.1 fixes the issue. Workarounds include reverting commit d6890320752ecf37bd74d11fe14fe7dc12335be9 and/or manually editing language files to remove the sprintf placeholder `%1$s` from `$s_tag_delete_message` string.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

XSS stored en confirmación de eliminación de etiquetas (CWE-79, improper escaping). Requiere autenticación (PR:L) e interacción del usuario (UI:P) para clicar confirmación; ejecuta JavaScript arbitrario en navegador.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Mantisbt — Mantisbt

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "Mantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, when deleting a Tag (tag_delete.php), improper escaping of its name when displaying the confirmation message allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript. Version 2.28.1 fixes the issue. Workarounds include reverting commit d6890320752ecf37bd74d11fe14fe7dc12335be9 and/or manually editing language files to remove the sprintf placeholder `%1$s` from `$s_tag_delete_message` string."
    },
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      "value": "Mantis Bug Tracker (MantisBT) es un sistema de seguimiento de incidencias de código abierto. En la versión 2.28.0, al eliminar una Etiqueta (tag_delete.php), un escape incorrecto de su nombre al mostrar el mensaje de confirmación permite a un atacante inyectar HTML y, si la configuración de CSP lo permite, lograr la ejecución de JavaScript arbitrario. La versión 2.28.1 corrige el problema. Las soluciones provisionales incluyen revertir el commit d6890320752ecf37bd74d11fe14fe7dc12335be9 y/o editar manualmente los archivos de idioma para eliminar el marcador de posición sprintf %1$s de la cadena $s_tag_delete_message."
    }
  ],
  "lastModified": "2026-06-17T10:37:38.470",
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