CVE-2026-38446
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.2%
exploitation probability
0.2%top 84% of all CVEs
observed exploitation
nono source reports it
A stored cross-site scripting (XSS) vulnerability exists in osTicket 1.18.3 due to improper sanitization of the thread entry title field. User-controlled input in the title is stored without adequate HTML escaping and later rendered in multiple staff-facing templates without proper output encoding. An attacker can inject arbitrary JavaScript by submitting a crafted ticket reply or email with a malicious subject line.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
n/a · n/aReferences
https://github.com/fr3akhacks/cve-disclosures/blob/master/osTicket/CVE-2026-38446.mdhttps://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/reply-expand.tmpl.phphttps://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entries.tmpl.phphttps://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entry.tmpl.php#L84https://github.com/osTicket/osTicket/commit/1e39bf1cf78fa298285f19b98f6a6dbb6808de19