XSS in Wp Import Export Lite

CVE-2026-76558

The WP Import Export Lite WordPress plugin before 3.9.33 does not escape custom field names retrieved from the database before inserting them into the DOM of one of its administration screens, allowing users with a role as low as contributor to perform Stored XSS attacks which will trigger in the browser of a high privileged user, such as an administrator, viewing that screen.

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: 0.004 (37.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% 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-2026-76558: held from 0.004 to 0.004.

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

Affected products

  • Wp Import Export Lite

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-76558?
CVE-2026-76558 is a medium-severity vulnerability in Wp Import Export Lite, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-09-16.
How severe is CVE-2026-76558?
Medium severity. CVSS v3 base score is 6.8 out of 10.