---
id: "CVE-2026-115993"
kind: "vulnerability"
aliases: ["CVE-2026-115993"]
title: "Cervantes: stored XSS in Checklists Notes runs code in users' browsers"
severity: "medium"
cvss: 6.8
epss: 0.00421
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["cervantes", "other", "self-hosted"]
not_affected_if: []
published_at: "2026-10-24T09:16:44+00:00"
first_seen_at: "2026-10-24T09:47:21+00:00"
updated_at: "2026-10-25T12:38:49+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115993", "first_seen_at": "2026-10-24T09:47:21+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-115993", "first_seen_at": "2026-10-25T12:38:49+00:00"}]
---

# Cervantes: stored XSS in Checklists Notes runs code in users' browsers

The Notes field of Checklists in Cervantes v1.3-beta stores attacker-supplied script that runs when other users view it. An attacker can run code in another user's browser with that user's elevated privileges.

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

## Timeline

- 2026-10-24T09:47:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115993
- 2026-10-25T12:38:49+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-115993

## From the sources

Stored XSS vulnerability in the “Notes” field of the Checklists in Cervantes version v1.3-beta could allow an attacker to execute arbitrary code in another user's browser with elevated privileges

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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_