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Fencer Intel
medium 5.4

CVE-2019-13493 json

In Sitecore 9.0 rev 171002, Persistent XSS exists in the Media Library and File Manager.

published 7y ago modified 4mo ago also EUVD-2019-4954

cvss
5.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
1
Exploit-DB

Summary

In Sitecore 9.0 rev 171002, Persistent XSS exists in the Media Library and File Manager. An authenticated unprivileged user can modify the uploaded file extension parameter to inject arbitrary JavaScript.

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Timeline

  1. First public exploit (EDB-47106)
  2. Published

Exploit prediction

1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-47106 Sitecore 9.0 rev 171002 - Persistent Cross-Site Scripting webapps, 2019-07-11
  • packetstormsecurity.com http://packetstormsecurity.com/files/153613/Sitecore-9.0-Rev-171002-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

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

References

Sources

Fencer Intel 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.