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Fencer Intel
medium 6.1

CVE-2018-15703 json

Advantech WebAccess 8.3.2 and below is vulnerable to multiple reflected cross site scripting vulnerabilities.

published 8y ago modified 4mo ago also EUVD-2018-7573

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

Advantech WebAccess 8.3.2 and below is vulnerable to multiple reflected cross site scripting vulnerabilities. A remote unauthenticated attacker could potentially exploit this vulnerability by tricking a victim to supply malicious HTML or JavaScript code to WebAccess, which is then reflected back to the victim and executed by the web browser.

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Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • tenable.com https://www.tenable.com/security/research/tra-2018-33 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

Affected products

  • Advantech Advantech WebAccess

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.