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Fencer Intel
medium 5.4

CVE-2017-16819 json

A stored cross-site scripting vulnerability in the Icon Time Systems RTC-1000 v2.5.7458 and earlier time clock allows remote attackers to i…

published 8y ago modified 4mo ago also EUVD-2017-7994

cvss
5.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
1
Exploit-DB

Summary

A stored cross-site scripting vulnerability in the Icon Time Systems RTC-1000 v2.5.7458 and earlier time clock allows remote attackers to inject arbitrary JavaScript in the nameFirst (aka First Name) field for the employee details page (/employee.html) that is then reflected in multiple pages where that field data is utilized, resulting in session hijacking and possible elevation of privileges.

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Timeline

  1. First public exploit (EDB-43158)
  2. Published

Exploit prediction

1.90% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-43158 Icon Time Systems RTC-1000 Firmware 2.5.7458 - Cross-Site Scripting webapps, 2017-11-17
  • keiththome.com https://www.keiththome.com/rtc-1000-vuln/ 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.