CVE-2026-53606
Fixed in a distro release EPSS <1%CVSS 5.4
ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Versions of sanitize-html prior to 2.17.5 use `allowedSchemesAppliedToAttributes` (default: `['href', 'src', 'cite']`) to gate the `naughtyHref()` function that blocks dangerous URI schemes like `javascript:` and `vbscript:`. The HTML specification defines 10+ attributes that accept URIs (`action`, `formaction`, `data`, `poster`, `background`, `ping`, `xlink:href`, `dynsrc`, `lowsrc`), but none of these are included in the default gate list. When a developer allows any of these attributes in their configuration, `javascript:` URIs pass through completely unmodified, enabling XSS. Version 2.17.5 patches the issue.
Products: apostrophecms sanitize-html
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| npm | sanitize-html | 2.17.5 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | jupyter-base-notebook | 7.6.3-r2 |
| Chainguard | tensorflow-gpu-jupyter | 2.21.0-r9 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | golang-github-prometheus-prometheus | 3.13.2-150100.4.40.2 |
| SUSE Multi Linux Manager Tools SLE-15 | golang-github-prometheus-prometheus | 3.13.2-150002.3.19.1 |
| SUSE Multi Linux Manager Tools SLE-15 | grafana | 12.4.10-150002.4.27.1 |
| SUSE Multi Linux Manager Tools SLE-15 | mgr-push | 5.2.5-150002.3.12.1 |
| SUSE Multi Linux Manager Tools SLE-15 | spacecmd | 5.2.10-150002.3.15.1 |
| SUSE Multi Linux Manager Tools SLE-15 | spacewalk-client-tools | 5.2.7-150002.3.12.1 |
| SUSE Multi Linux Manager Tools SLE-15 | uyuni-tools | 5.2.17-150002.3.20.1 |
| SUSE Multi Linux Manager Tools SLE-15 | venv-salt-minion | 3006.0-150002.5.22.1 |
| SUSE Multi Linux Manager Tools SLE-Micro-5 | uyuni-tools | 5.2.17-150002.3.20.1 |
| SUSE Multi Linux Manager Tools SLE-Micro-5 | venv-salt-minion | 3006.0-150002.5.22.1 |
| Wolfi | jupyter-base-notebook | 7.6.3-r2 |