CVE-2023-23627
Description
Sanitize is an allowlist-based HTML and CSS sanitizer. Versions 5.0.0 and later, prior to 6.0.1, are vulnerable to Cross-site Scripting. When Sanitize is configured with a custom allowlist that allows `noscript` elements, attackers are able to include arbitrary HTML, resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. The default configurations do not allow `noscript` elements and are not vulnerable. This issue only affects users who are using a custom config that adds `noscript` to the element allowlist. This issue has been patched in version 6.0.1. Users who are unable to upgrade can prevent this issue by using one of Sanitize's default configs or by ensuring that their custom config does not include `noscript` in the element allowlist.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.0.0-1.1 |
| sid | Fixed | 6.0.0-1.1 |
| forky | Fixed | 6.0.0-1.1 |
| bullseye | Affected | — |
| bookworm | Fixed | 6.0.0-1.1 |
References
- https://github.com/rgrove/sanitize/security/advisories/GHSA-fw3g-2h3j-qmm7
- https://nvd.nist.gov/vuln/detail/CVE-2023-23627
- https://github.com/rgrove/sanitize/commit/ec14265e530dc3fe31ce2ef773594d3a97778d22
- https://github.com/rgrove/sanitize
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/sanitize/CVE-2023-23627.yml
- https://security-tracker.debian.org/tracker/CVE-2023-23627
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.