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
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
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Best Practical Solutions | RT for Incident Response | unaffected |
|
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Fixes
Solution
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Workaround
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References
History
Fri, 30 Oct 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 | |
| Title | Stored XSS via HTML scrubber rule in RTIR | |
| First Time appeared |
Best Practical Solutions
Best Practical Solutions rt For Incident Response |
|
| Weaknesses | CWE-79 | |
| CPEs | cpe:2.3:a:best_practical_solutions:rt_for_incident_response:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Best Practical Solutions
Best Practical Solutions rt For Incident Response |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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MITRE
Status: PUBLISHED
Assigner: CERT-PL
Published:
Updated: 2026-10-30T15:22:07.644Z
Reserved: 2026-10-05T14:00:11.458Z
Link: CVE-2026-105456
Vulnrichment
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NVD
No data.
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses