What is CVE-2019-15054?

CVE-2019-15054 is a medium-severity vulnerability in Getmailbird Mailbird, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-11-18.

How severe is CVE-2019-15054?

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

Is CVE-2019-15054 known to be exploited?

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

XSS in Getmailbird Mailbird

CVE-2019-15054

Multiple cross-site scripting (XSS) vulnerabilities in Mailbird before 2.7.5.0 r allow remote attackers to execute arbitrary JavaScript in a privileged context via a crafted HTML mail message. This vulnerability is distinct from CVE-2015-4657.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-11-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.027 (85.8th percentile), scored 2026-10-26.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Getmailbird Mailbird

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

startrekdude.github.io/mailbird.html (Mailing List, Third Party Advisory)
www.getmailbird.com/ReleaseNotes/LatestReleaseNotes.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2019-15054?: CVE-2019-15054 is a medium-severity vulnerability in Getmailbird Mailbird, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-11-18.
How severe is CVE-2019-15054?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-15054 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.