Read the docs
TI-2026-83164 Aliases CVE-2026-105454GHSA-356j-wm99-9qqc

Stored XSS via crafted URLs in HTML ticket content in Request Tracker

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Request Tracker from 5.0.0 before 5.0.11 and from 6.0.0 before 6.0.4 does not HTML-escape URLs that it turns into automatic links in HTML ticket content, which is improper neutralization of input during web page generation (CWE-79). A crafted URL can break out of the link's address and add a script that runs when the ticket history is displayed. Anyone who can add HTML content to a ticket can plant it, including an unauthenticated sender of HTML email to a queue that grants CreateTicket or ReplyToTicket to Everyone. The script runs in the session of any user who views the ticket and can act in RT with that user's authority.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

RT's automatic link creation for URLs in HTML ticket content does not HTML-escape the URL it places in the link. A URL crafted to break out of the link's address can add a script that runs when the ticket history is displayed, with no further action by the viewer. Anyone who can add HTML content to a ticket can plant it. That includes an unauthenticated sender of HTML email to any queue that grants CreateTicket or ReplyToTicket to Everyone, which is routine for a queue that accepts mail from the public. The script runs in the session of any user who views the ticket, and can act in RT with that user's authority. This issue was fixed in version 5.0.11 and 6.0.4

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00436 38th percentileScored 2026-11-07
Fix Fixed Request Tracker (Best Practical Solutions): 5.0.11, 6.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Best Practical SolutionsRequest Tracker5.0.0 to before 5.0.11; 6.0.0 to before 6.0.45.0.11, 6.0.4Patch availableCNA
  • Request Tracker VendorBest Practical Solutions Affected 5.0.0 to before 5.0.11; 6.0.0 to before 6.0.4 Fixed in 5.0.11, 6.0.4 Patch available CNA

Remediation

Upgrade to Request Tracker 5.0.11 or 6.0.4, whichever matches the installed release line.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Request Tracker (Best Practical Solutions) Fixed in 5.0.11, 6.0.4

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-105454
  2. 2026-10-30 CISA SSVC decision points changed
  3. 2026-10-30 Alias added: GHSA-356j-wm99-9qqc
  4. 2026-11-06 Affected versions changed · Red Hat
  5. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

Other 1

  • TI-2003-00254 Cross-site scripting (XSS) vulnerability in the web interface for Request Tracker (RT)… CVSS 2.0MEDIUM 6.8
  • TI-2024-03059 Information exposure vulnerability in Request Tracker (RT) CVSS 3.1MEDIUM 5.5
  • TI-2006-02113 RT: Request Tracker 3.5.HEAD allows remote attackers to obtain sensitive information via… CVSS 2.0MEDIUM 5.0
  • TI-2026-83166 Stored XSS via HTML scrubber rule in RTIR CVSS 4.0MEDIUM 5.3
  • TI-2026-83165 Cross-site scripting in RTIR ticket split and incident creation forms CVSS 4.0MEDIUM 5.3
  • TI-2012-02390 Multiple cross-site scripting (XSS) vulnerabilities in the topic administration page in… CVSS 2.0MEDIUM 4.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences