A cross-site scripting (XSS) attack can cause arbitrary code (JavaScript) to run in a user's browser and can use an application as the vehicle for the attack. The XSS payload given in the "Custom logo link" executes whenever the user opens the Settings Page of the "Customize Login Image" Plugin.
CVE-2021-33851 is a medium severity with CVSS 5.4 Cross-Site Scripting issue affecting the Plugin Customize Login Image. It affects Versions up to 3.4 and is fixed in 3.5.
CVE-2021-33851 is tracked for the Plugin Customize Login Image as medium severity with CVSS 5.4. The affected range is Versions up to 3.4. Update Customize Login Image to 3.5 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
customize-login-image
View on wordpress.org
|
| CVE | CVE-2021-33851 |
| Patched Versions |
3.5
|
| Affected Versions |
Versions up to 3.4
|
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