What is CVE-2019-15109?

CVE-2019-15109 is a medium-severity vulnerability in Stellarwp The Events Calendar, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-21.

How severe is CVE-2019-15109?

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

Is CVE-2019-15109 known to be exploited?

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

XSS in Stellarwp The Events Calendar

CVE-2019-15109

The the-events-calendar plugin before 4.8.2 for WordPress has XSS via the tribe_paged URL parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-08-21 · 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: 0.011 (63.3th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Stellarwp The Events Calendar

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wordpress.org/plugins/the-events-calendar/ (Release Notes)
wpvulndb.com/vulnerabilities/9554 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-15109?: CVE-2019-15109 is a medium-severity vulnerability in Stellarwp The Events Calendar, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-21.
How severe is CVE-2019-15109?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-15109 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.