CVE-2025-5699

Description

The Developer Formatter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS in all versions up to, and including, 2015.0.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Reserved 2025-06-04 | Published 2025-06-06 | Updated 2025-06-06 | Assigner Wordfence

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

*
affected

Timeline

2025-06-05:

Disclosed

Credits

Emad El Araby finder

References

www.wordfence.com/...-778b-452b-9081-cf20dc7f7ec1?source=cve

plugins.trac.wordpress.org/...rmatter/trunk/devinterface.php

wordpress.org/plugins/devformatter/

plugins.trac.wordpress.org/...formatter/trunk/devfmt_css.php

cve.org (CVE-2025-5699)

nvd.nist.gov (CVE-2025-5699)

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