---
id: "CVE-2026-125451"
page: "https://infrastack.ai/live/CVE-2026-125451"
kind: "vulnerability"
aliases: ["CVE-2026-125451"]
title: "bPlugins B Blocks WordPress plugin: stored XSS through input handling"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["b-blocks", "package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-11-11T12:19:49+00:00"
first_seen_at: "2026-11-11T12:27:12+00:00"
updated_at: "2026-11-11T12:28:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125451", "first_seen_at": "2026-11-11T12:27:12+00:00"}]
exploit_sources: []
---

# bPlugins B Blocks WordPress plugin: stored XSS through input handling

Link for people: https://infrastack.ai/live/CVE-2026-125451 (this .md is for agents)

The bPlugins B Blocks plugin for WordPress fails to neutralize input when generating web pages, enabling stored cross-site scripting. An attacker who can submit content can run scripts in the browsers of people who view the affected page.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed B Blocks plugin version in the WordPress admin under Plugins, or with `wp plugin get b-blocks --field=version`
- Compare the version against the range `2.1.15` and below, which the description says is affected

## Fix

- B Blocks: unknown (the sources give no fixed version)

## Timeline

- 2026-11-11T12:27:12+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125451

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in bPlugins B Blocks b-blocks allows Stored XSS.This issue affects B Blocks: from n/a through 2.1.15.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_