CVE-2026-105456
MEDIUM
MEDIUM
Priority: 0.00
BB Relevance:
61/100
Published: 2026-10-30
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Network
Low Complexity
No Auth
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
Passive
S:
X
AT:
None
VC:
Low
VI:
Low
VA:
None
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
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| Best Practical Solutions | RT for Incident Response | 5.0.0 < 5.0.11 |
| Best Practical Solutions | RT for Incident Response | 6.0.0 < 6.0.4 |
| Best Practical Solutions | RT for Incident Response | 5.0.0 < 5.0.11 |
| Best Practical Solutions | RT for Incident Response | 6.0.0 < 6.0.4 |
References & Advisories (2)
third-party-advisory
product