CVE-2021-25026

Name: CVE-2021-25026
Creator: NVD / NIST
Published: 2022-03-14T15:15:09.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2021-25026 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The Patreon WordPress plugin before 1.8.2 does not sanitise and escape the field "Custom Patreon Page name", which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

The Patreon WordPress plugin before 1.8.2 does not sanitise and escape the field "Custom Patreon Page name", which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.69%

48.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Patreon	Patreon Wordpress	< 1.8.2

References

https://plugins.trac.wordpress.org/changeset/2682069Patch, Third Party Advisory
https://wpscan.com/vulnerability/02756dd3-832a-4846-b9e1-a34f148b5cfeExploit, Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2682069Patch, Third Party Advisory
https://wpscan.com/vulnerability/02756dd3-832a-4846-b9e1-a34f148b5cfeExploit, Third Party Advisory

Timeline

Published: Mar 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25026?

How severe is CVE-2021-25026?

CVE-2021-25026 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25026?

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-2021-25026?

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

Scan your code now

Source: NVD / NIST