What is CVE-2018-19877?

CVE-2018-19877 is a medium-severity vulnerability in Adiscon Loganalyzer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-05.

How severe is CVE-2018-19877?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-19877 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Adiscon Loganalyzer

CVE-2018-19877

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-12-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.186 (97.2th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.186 · newest: 0.186 · change: 0.000

Affected products

Adiscon Loganalyzer

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

loganalyzer.adiscon.com/news/loganalyzer-v4-1-7-v4-stable-released/ (Release Notes, Vendor Advisory)
www.exploit-db.com/exploits/45958/ (Exploit, VDB Entry, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2018-19877?: CVE-2018-19877 is a medium-severity vulnerability in Adiscon Loganalyzer, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-05.
How severe is CVE-2018-19877?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-19877 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.