CVE-2025-12354

The Live CSS Preview plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wp_ajax_frontend_save' AJAX endpoint in all versions up to, and including, 2.1.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update the plugin's css setting.

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2025-12-05

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3445161%40live-css-preview&new=3445161%40live-css-preview&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/live-css-preview/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/3ebaadf6-5085-4f2d-a377-34e318351449?source=cve

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