Description
'sanitize-html' prior to version 1.0.3 is vulnerable to Cross-site Scripting (XSS). The function 'naughtyHref' doesn't properly validate the hyperreference (`href`) attribute in anchor tags (`<a>`), allowing bypasses that contain different casings, whitespace characters, or hexadecimal encodings.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | sanitize-html | < 1.0.3 | 1.0.3 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-sanitize-html | No fix yet | — |
| Ubuntu 26.04 LTS | node-sanitize-html | No fix yet | — |
| Ubuntu 25.10 | node-sanitize-html | No fix yet | — |
| Ubuntu 24.04 LTS | node-sanitize-html | No fix yet | — |
| Ubuntu 22.04 LTS | node-sanitize-html | No fix yet | — |
References
- https://github.com/apostrophecms/sanitize-html/issues/1 issue-tracking
- https://github.com/apostrophecms/sanitize-html/commit/889d4ec968e175f1905b2eb9d33f1fa89217cb02 patch
- https://github.com/apostrophecms/sanitize-html/commit/423b90e06e1e85245eccedaabeb3a82840c6cd86 patch
- https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2014/CVE-2014-125128 exploit