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Fencer Vulns
medium 6.1

CVE-2019-11537 json

In osTicket before 1.12, XSS exists via /upload/file.php, /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if a…

published 2019-04-25 7 y ago modified 2026-07-10 4 mo ago also EUVD-2019-3208

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.6%
EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits
1
Exploit-DB

Summary

In osTicket before 1.12, XSS exists via /upload/file.php, /upload/scp/users.php?do=import-users, and /upload/scp/ajax.php/users/import if an agent manager user uploads a crafted .csv file to the User Importer, because file contents can appear in an error message. The XSS can lead to local file inclusion.

Patch / fix

  • enhancesoft osticket 1.12

Timeline

  1. First public exploit (EDB-46753)
  2. Published

Exploit prediction

4.62% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46753 osTicket 1.11 - Cross-Site Scripting / Local File Inclusion webapps, 2019-04-25
  • pentest.com.tr https://pentest.com.tr/exploits/osTicket-v1-11-XSS-to-LFI.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.