CVE-2020-35037: The Events Manager WordPress plugin before 5.9.8 does not sanitise and escape some search parameter before outputing them in pages, which could lead to Cross-Site Scripting issues

medium Affects events-manager (WordPress plugin). Feed 2026.10.29.4, updated 2026-10-29; published 2021-12-01; advisory modified 2026-06-17.

The Events Manager WordPress plugin before 5.9.8 does not sanitise and escape some search parameter before outputing them in pages, which could lead to Cross-Site Scripting issues

Package: events-manager (WordPress plugin) WordPress
Affected versions: <5.9.8
Fixed in: 5.9.8
Severity: medium CVSS 6.1
Exploitation: not on CISA KEV · EPSS 1% (59.8th percentile)
Published: 2021-12-01
Source: nvd

References

CWE-79

NVD record events-manager (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs How findings are ranked

Related advisories

CVE-2025-6970 high The Events Manager – Calendar, Bookings, Tickets, and more! plugin for WordPress is vulner same package: events-manager (WordPress plugin)
CVE-2015-9298 critical The events-manager plugin before 5.6 for WordPress has code injection. same package: events-manager (WordPress plugin)
CVE-2013-1407 medium Multiple cross-site scripting (XSS) vulnerabilities in the Events Manager plugin before 5. same package: events-manager (WordPress plugin)
CVE-2020-35012 high The Events Manager WordPress plugin before 5.9.8 does not sanitise and escape a parameter same package: events-manager (WordPress plugin)
CVE-2018-0576 medium Cross-site scripting vulnerability in Events Manager plugin prior to version 5.9 for WordP same package: events-manager (WordPress plugin)
CVE-2019-16523 medium The events-manager plugin through 5.9.5 for WordPress (aka Events Manager) is susceptible same package: events-manager (WordPress plugin)