XSS in Onesignal Onesignal-Free-Web-Push-Notifications

CVE-2019-15827

The onesignal-free-web-push-notifications plugin before 1.17.8 for WordPress has XSS via the subdomain parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.011 (61.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-15827?
CVE-2019-15827 is a medium-severity vulnerability in Onesignal Onesignal-Free-Web-Push-Notifications, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-30.
How severe is CVE-2019-15827?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2019-15827 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.