---
id: "CVE-2026-61993"
kind: "vulnerability"
aliases: ["CVE-2026-61993"]
title: "Blockonomics plugin: unauthenticated cross-site scripting in version 3.11.0"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "blockonomics-bitcoin-payments", "fixed": [], "affected": "3.11.0", "ecosystem": "wordpress"}]
ecosystems: []
tags: ["blockonomics", "package", "unauthenticated", "woocommerce", "wordpress", "xss"]
not_affected_if: ["other-plugin-versions", "plugin-not-installed"]
published_at: "2026-10-29T16:18:12+00:00"
first_seen_at: "2026-10-29T16:25:59+00:00"
updated_at: "2026-10-29T16:36:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61993", "first_seen_at": "2026-10-29T16:25:59+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-10-29T16:35:58+00:00"}]
---

# Blockonomics plugin: unauthenticated cross-site scripting in version 3.11.0

Blockonomics 3.11.0 has an unauthenticated cross-site scripting flaw. An attacker can inject script that runs in a visitor's or administrator's browser.

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

## Affected

- wordpress:blockonomics-bitcoin-payments affected 3.11.0 fixed ?

## How to check

In WordPress admin > Plugins, look for 'Bitcoin Payments – Blockonomics' (slug blockonomics-bitcoin-payments); version 3.11.0 is affected. Or run: wp plugin get blockonomics-bitcoin-payments --field=version

## Fix

No patched version as of 2026-10-29: the wordpress.org changelog lists 3.11.0 as the latest release and Patchstack says no official patch is available. Watch for a release above 3.11.0; until then consider deactivating the plugin or applying a WAF/virtual patch.

## Timeline

- 2026-10-29T16:25:59+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-61993
- 2026-10-29T16:35:58+00:00 analyst — Correction: the earlier write wrongly marked who_affected verified. Only the third-party Patchstack page describes the affected version, and the vendor page has no advisory. The badge is removed and nothing is verified.

## Documents

- [advisory] Patchstack: Blockonomics 3.11.0 XSS https://patchstack.com/database/wordpress/plugin/blockonomics-bitcoin-payments/vulnerability/wordpress-blockonomics-plugin-3-11-0-cross-site-scripting-xss-vulnerability
- [fix] Bitcoin Payments – Blockonomics (wordpress.org changelog, latest 3.11.0) https://wordpress.org/plugins/blockonomics-bitcoin-payments/

## From the sources

Unauthenticated Cross Site Scripting (XSS) in Blockonomics 3.11.0 versions.

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