---
id: "CVE-2026-117182"
kind: "vulnerability"
aliases: ["CVE-2026-117182"]
title: "Spina CMS: authenticated XSS in embeddable.rb lets attackers run scripts"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "rails", "ruby", "self-hosted", "spina"]
not_affected_if: ["other-version", "unauthenticated-only-access"]
published_at: "2026-10-30T16:17:41+00:00"
first_seen_at: "2026-10-30T16:31:25+00:00"
updated_at: "2026-10-30T16:32:37+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117182", "first_seen_at": "2026-10-30T16:31:25+00:00"}]
---

# Spina CMS: authenticated XSS in embeddable.rb lets attackers run scripts

Spina CMS v2.21.0 has a cross-site scripting flaw in its /spina/embeddable.rb component. An attacker who has a login can inject a crafted URL to run arbitrary scripts or HTML in another user's browser.

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

## How to check

- Confirm the Spina CMS version with `bundle exec rails runner "puts Spina::VERSION"` or by checking the Gemfile.lock for `spina`
- If the version is `2.21.0`, the install is in the affected range

## Timeline

- 2026-10-30T16:31:25+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-117182

## From the sources

An authenticated cross-site scripting (XSS) vulnerability in the /spina/embeddable.rb component of Spina CMS v2.21.0 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted URL.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_