CVE-2026-105454

Severity not reported

Data quality: awaiting analysis. NVD has not completed analysis, so CVSS and affected-product data may be missing or change.

RT's automatic link creation for URLs in HTML ticket content does not HTML-escape the URL it places in the link.

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

CVSS

—

Awaiting analysis by NVD

Timeline (UTC)

Published: 2026-10-30 16:17

Modified: 2026-10-30 19:37

NVD status: Awaiting Analysis

Last synced 7 hours ago

Verified against the source API 2026-10-30 19:54 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-79

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://cert.pl/en/posts/2026/10/CVE-2026-105454 cvd@cert.pl
https://requesttracker.com/request-tracker/ cvd@cert.pl

Data sources

NVD CVE API 2.0 — fetched 2026-10-30 19:54 UTC · record ↗

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