CVE-2026-105456: falha de média gravidade em Best Practical Solutions RT for Incident…
Stored XSS via HTML scrubber rule in RTIR
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Ela tem alerta oficial do governo brasileiro.
ssvc Trackcvss 5.3epss 0.4%
Alerta oficial no Brasil
O governo federal publicou alerta, recomendação ou boletim que cita esta vulnerabilidade.
- CISC Gov.br · 04 nov 2026Boletim do CISC de Vulnerabilidadesler no gov.br ↗
Fonte: CTIR Gov (GSI) e CISC Gov.br, sob licença CC BY-ND 3.0.
RTIR extends RT's HTML scrubber to allow an internal link
placeholder, and the extension lets through any link that merely
contains the placeholder, including links using the executable
javascript: scheme. The change applies to the whole RT instance
once RTIR is installed, not only to RTIR's own queues. Anyone who
can add HTML content to a ticket on such an instance can store
such a link. That includes an unauthenticated sender of HTML email
to the Incident Reports queue, which RTIR opens to everyone by
default. Script runs when a user clicks the link, in that user's
session, and can act in RT with that user's authority.
This issue was fixed in version 5.0.11 and 6.0.4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
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