What is CVE-2020-29395?

CVE-2020-29395 is a medium-severity vulnerability in Myeventon Eventon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-30.

How severe is CVE-2020-29395?

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

Is CVE-2020-29395 known to be exploited?

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

XSS in Myeventon Eventon

CVE-2020-29395

The EventON plugin through 3.0.5 for WordPress allows addons/?q= XSS via the search field.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-11-30 · 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: 0.129 (96.2th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.129 · newest: 0.129 · change: 0.000

Affected products

Myeventon Eventon

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/mustgundogdu/Research/tree/main/EventON_PLUGIN_XSS (Exploit, Third Party Advisory)
www.myeventon.com/news/ (Vendor Advisory)
packetstormsecurity.com/files/160282/WordPress-EventON-Calendar-3.0.5-Cross-Sit… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-29395?: CVE-2020-29395 is a medium-severity vulnerability in Myeventon Eventon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-30.
How severe is CVE-2020-29395?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-29395 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.