CVE-2026-54682: fallo de gravedad alta en Tyrrrz DiscordChatExporter
DiscordChatExporter: Stored XSS in HTML export when markdown formatting is disabled
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.2epss 0.2%
DiscordChatExporter saves Discord chat logs to a file. Prior to 2.47.2, HTML exports generated with markdown formatting disabled pass attacker-controlled content through FormatMarkdownAsync and FormatEmbedMarkdownAsync in DiscordChatExporter.Core/Exporting/MessageGroupTemplate.cshtml and render it without HTML entity encoding. The affected fields include message.Content, message.ForwardedMessage.Content, message.ReferencedMessage.Content, embed.Title, embed.Description, field.Name, and field.Value. A Discord webhook or bot can store a script payload in these fields, and the payload executes when a user exports the channel with markdown formatting disabled and opens the resulting HTML, allowing the script to read the export or alter its displayed content. This issue is fixed in version 2.47.2.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Productos afectados
Tyrrrz · DiscordChatExporterCVEs relacionadas — Tyrrrz DiscordChatExporter
En el mismo producto, de las más peligrosas a las menos.
Referencias
https://github.com/Tyrrrz/DiscordChatExporter/commit/5632d6c3867d2f79cba9578056c98caee4377c1bhttps://github.com/Tyrrrz/DiscordChatExporter/pull/1545https://github.com/Tyrrrz/DiscordChatExporter/releases/tag/2.47.2https://github.com/Tyrrrz/DiscordChatExporter/security/advisories/GHSA-8qrv-mmch-fr9c