CVE-2026-105455

Stored XSS via related ticket subject on RTIR Split and Create Incident forms

MEDIUM
5.3
CVSS Score
Published: October 30, 2026 at 03:34 PM UTC
Updated: October 30, 2026 at 07:37 PM UTC
1 product affected across 1 vendorRequest Tracker for Incident Response

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

RTIR's ticket creation forms show the subject of the related ticket when splitting a ticket or creating an incident from a report, and they render that subject without HTML escaping. A ticket subject containing script runs it when a user opens either form. RTIR grants everyone the right to create Incident Reports by default, so an unauthenticated sender of an emailed report can set that subject. The script then runs in the session of the incident handler who creates an incident from the report or splits it, and can act in RT with that user's authority. The issue was fixed in version 6.0.4. RTIR 5.0 is not affected.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisory
Source: cverecord
https://cert.pl/en/posts/2026/10/CVE-2026-105454
Product
Source: cverecord
https://requesttracker.com/rtir/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCERT-PL
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-79

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