How severe is CVE-2021-25026?

CVE-2021-25026 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-25026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25026?

CVE-2021-25026 affects Patreon Patreon Wordpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25026?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-25026 published?

CVE-2021-25026 was published on 2022-03-14 and last updated on 2026-06-17.

CVE-2021-25026

CVE-2021-25026 is a medium-severity vulnerability in Patreon Patreon Wordpress with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 3.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Patreon Patreon Wordpress
Published: 2022-03-14
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2021-25026?: 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
How severe is CVE-2021-25026?: CVE-2021-25026 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-25026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25026?: CVE-2021-25026 affects Patreon Patreon Wordpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25026 published?: CVE-2021-25026 was published on 2022-03-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:patreon:patreon_wordpress:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Patreon Patreon Wordpress

CVE-2018-20984 — Critical (CVSS 9.8): The patreon-connect plugin before 1.2.2 for WordPress has Object Injection.
CVE-2021-24229 — Critical (CVSS 9.6): The Jetpack Scan team identified a Reflected Cross-Site Scripting via the patreon_save_attachment_patreon_level AJAX…
CVE-2021-24228 — Critical (CVSS 9.6): The Jetpack Scan team identified a Reflected Cross-Site Scripting in the Login Form of the Patreon WordPress plugin…
CVE-2021-24230 — High (CVSS 8.1): The Jetpack Scan team identified a Cross-Site Request Forgery vulnerability in the Patreon WordPress plugin before…
CVE-2021-24227 — High (CVSS 7.5): The Jetpack Scan team identified a Local File Disclosure vulnerability in the Patreon WordPress plugin before 1.7.0…
CVE-2021-24231 — Medium (CVSS 6.5): The Jetpack Scan team identified a Cross-Site Request Forgery vulnerability in the Patreon WordPress plugin before…

All CVEs affecting Patreon Patreon Wordpress →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →