CVE-2026-105456 (GCVE-0-2026-105456)
Vulnerability from cvelistv5 – Published: 2026-10-30 15:22 – Updated: 2026-10-30 17:18 X_Open Source
VLAI
EPSS
VEX
Title
Stored XSS via HTML scrubber rule in RTIR
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 17:05 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/10/CVE-2026-105454 | third-party-advisory |
| https://requesttracker.com/rtir/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Best Practical Solutions | RT for Incident Response |
Affected:
5.0.0 , < 5.0.11
(semver)
Affected: 6.0.0 , < 6.0.4 (semver) cpe:2.3:a:best_practical_solutions:rt_for_incident_response:*:*:*:*:*:*:*:* cpe:2.3:a:best_practical_solutions:rt_for_incident_response:*:*:*:*:*:*:*:* |
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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