VulnSocial

CVE-2026-53606General

LOWCVSS 5.4 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-14); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-14: 1Mentions · 2026-10-20: 1Technical Details · 2026-10-20: 106-1410-20
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-06-141
General1
2026-10-201
Disclosure1
Full discourse2 posts
  • DailyCVE@dailycve
    Disclosure

    🟠 sanitize-#html, Incomplete URI Scheme Validation, #CVE-2026-53606 (medium) -DC-Oct2026-3445 https://dailycve.com/sanitize-html-incomplete-uri-scheme-validation-cve-2026-53606-medium-dc-oct2026-3445/

    Post summary

    The text is a disclosure post announcing CVE-2026-53606, a medium-severity incomplete URI scheme validation issue in sanitize-html, providing basic technical details and a link to a CVE aggregator page. No PoC, exploit, patch, or active exploitation information is included.

    0000028
    245 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-53606 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 prio… https://www.cve.org/CVERecord?id=CVE-2026-53606

    Post summary

    The text references CVE-2026-53606 and links to the CVE record but provides no detailed technical information, exploits, or mitigations.

    00000169
    57.6K followersView on X

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