CVE-2020-26153

Name: CVE-2020-26153
Creator: NVD / NIST
Published: 2021-07-13T11:15:08.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 3.80%

Last modified Jun 17, 2026

CVE-2020-26153 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-site scripting (XSS) vulnerability in wp-content/plugins/event-espresso-core-reg/admin_pages/messages/templates/ee_msg_admin_overview.template.php in the Event Espresso Core plugin before 4.10.7.p for WordPress allows remote attackers to inject arbitrary web script or HTML via the page parameter.. EPSS estimates a 3.80% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability in wp-content/plugins/event-espresso-core-reg/admin_pages/messages/templates/ee_msg_admin_overview.template.php in the Event Espresso Core plugin before 4.10.7.p for WordPress allows remote attackers to inject arbitrary web script or HTML via the page parameter.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

3.80%

88.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Eventespresso	Event Espresso	< 4.10.7.p

References

https://github.com/eventespresso/event-espresso-core/compare/4.10.6.p...4.10.7.pPatch, Third Party Advisory
https://labs.nettitude.com/blog/cve-2020-26153-event-espresso-core-cross-site-scripting/Exploit, Third Party Advisory
https://github.com/eventespresso/event-espresso-core/compare/4.10.6.p...4.10.7.pPatch, Third Party Advisory
https://labs.nettitude.com/blog/cve-2020-26153-event-espresso-core-cross-site-scripting/Exploit, Third Party Advisory

Timeline

Published: Jul 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26153?

How severe is CVE-2020-26153?

CVE-2020-26153 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 3.80% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26153?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-26153?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST