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CVE-2026-38446

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1ef5b2d67f7103e58e318a75d98cfbc4f269d757fd756916d1e43ce431156b34
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

5 source assertions
{"url":"https://github.com/fr3akhacks/cve-disclosures/blob/master/osTicket/CVE-2026-38446.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/references/3
{"url":"https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/reply-expand.tmpl.php"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/references/2
{"url":"https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entries.tmpl.php"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/references/1
{"url":"https://github.com/osTicket/osTicket/blob/v1.18.3/include/staff/templates/thread-entry.tmpl.php#L84"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/references/0
{"url":"https://github.com/osTicket/osTicket/commit/1e39bf1cf78fa298285f19b98f6a6dbb6808de19"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:461463709d29e992e5e5e305b2e6483447c635fcc34e98ee20d277b634309da5 · sha256:9690c6dd0e390a5e… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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