Vulnerability in Yootheme

CVE-2026-10077

The yootheme WordPress theme before 5.0.35 does not prevent its bundled front-end framework from treating certain HTML attributes, which are permitted by wp_kses_post(), as markup, allowing users with the Author role to perform Stored Cross-Site Scripting attacks that execute in the browser of any user who views the affected post.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-10077: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Yootheme — versions 0

References

Frequently asked questions

What is CVE-2026-10077?
CVE-2026-10077 is a medium-severity vulnerability in Yootheme, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 6.8/10. Published 2026-07-02.
How severe is CVE-2026-10077?
Medium severity. CVSS v3 base score is 6.8 out of 10.