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Fencer Vulns
medium 5.4

CVE-2018-12903 json

In CyberArk Endpoint Privilege Manager (formerly Viewfinity) 10.2.1.603, there is persistent XSS via an account name on the create token sc…

published 2018-06-26 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-4856

cvss
5.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

In CyberArk Endpoint Privilege Manager (formerly Viewfinity) 10.2.1.603, there is persistent XSS via an account name on the create token screen, the VfManager.asmx SelectAccounts->DisplayName screen, a user's groups in ConfigurationPage, the Dialog Title field, and App Group Name in the Application Group Wizard.

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • code610.blogspot.com http://code610.blogspot.com/2018/06/exploiting-cyberark-1021603.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 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.