# CVE-2026-125451: WordPress B Blocks plugin <= 2.1.15 - Cross Site Scripting (XSS) vulnerability

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

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.

## Remediation

- fix: Update the WordPress B Blocks plugin to the latest available version (at least 2.1.16). (source: CNA: Patchstack)

## Affected products and versions

- bPlugins / B Blocks (b-blocks): ≥ 0; ≤ 2.1.15 (affected, custom); unaffected at 2.1.16. Source: CNA: Patchstack

## Severity and prioritization

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L; source: CNA: Patchstack

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://patchstack.com/database/wordpress/plugin/b-blocks/vulnerability/wordpress-b-blocks-plugin-2-1-15-cross-site-scripting-xss-vulnerability?_s_id=cve (CNA: Patchstack; vdb-entry)

## Provenance

- CNA: Patchstack: https://www.cve.org/CVERecord?id=CVE-2026-125451; retrieved 2026-11-11; source updated 2026-11-11

Revision: 8d9e761dacc61f1b18a0090c3991f432e18dbc8ab1c58c3ede1d691d15ab0808

Canonical: https://y2.dev/cve/CVE-2026-125451

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