What is CVE-2018-15510?

CVE-2018-15510 is a medium-severity vulnerability in Totemo Totemomail, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-30.

How severe is CVE-2018-15510?

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

XSS in Totemo Totemomail

CVE-2018-15510

Cross-site scripting (XSS) vulnerability in the 'Certificate' feature of totemomail 6.0.0 build 570 allows remote attackers to inject arbitrary web script or HTML.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-08-30 · 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: 0.006 (48.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Totemo Totemomail — versions 6.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.contextis.com/en/resources/advisories/cve-2018-15510 (Third Party Advisory)

Frequently asked questions

What is CVE-2018-15510?: CVE-2018-15510 is a medium-severity vulnerability in Totemo Totemomail, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-30.
How severe is CVE-2018-15510?: Medium severity. CVSS v3 base score is 6.1 out of 10.