XSS in Sogo Add Script To Individual Pages Header Footer

CVE-2026-14835

The SOGO Add Script to Individual Pages Header Footer WordPress plugin through 3.9 does not sanitise or escape the custom header/footer script values saved from its post metabox, and does not restrict them to users with the unfiltered_html capability, allowing users with contributor-level access and above to store JavaScript that executes in the browser of any administrator who reviews the post and of any visitor once the post is published.

Vulnerability class: XSS (Cross-Site Scripting)

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: 0.002 (12.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.7% 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-2026-14835: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

  • Sogo Add Script To Individual Pages Header Footer

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-14835?
CVE-2026-14835 is a medium-severity vulnerability in Sogo Add Script To Individual Pages Header Footer, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-08-30.
How severe is CVE-2026-14835?
Medium severity. CVSS v3 base score is 6.8 out of 10.