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  4. CVE 2026 49436 linkace vulnerable to stored xss via javascript
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Back to active CVEs
High · CVSS 7.3CVE-2026-49436

LinkAce vulnerable to stored XSS via 'javascript:' URI in Bulk Link APICVE-2026-49436

Answer in brief

CVE-2026-49436 records a High severity (CVSS 7.3) vulnerability in LinkAce vulnerable to stored XSS via 'javascript:' URI in Bulk Link API. The current sources do not mark it as known exploited. The current feed maps Kovah/LinkAce (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 20, 2026Updated Sep 18, 2026Source checked Oct 6, 2026First seen by HOL Aug 20, 2026Material review Sep 18, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Kovah/LinkAce (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Kovah/LinkAcegeneric<2.5.72.5.7

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Kovah/LinkAce.
  2. 2Review the reported fix. Update Kovah/LinkAce to 2.5.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 20, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

LinkAce is a self-hosted archive to collect website links. Prior to version 2.5.7, the Bulk Link API endpoint (`POST /api/v2/bulk/links`) accepts URLs without any format validation, allowing an authenticated user to store a `javascript:` URI. The stored URI is later rendered verbatim as an `href` in Blade templates, and clicking it executes arbitrary JavaScript in the victim's browser — exfiltrating cookies and session tokens. Version 2.5.7 fixes the issue.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Open Redirect in PingGateway Fragment FilterSame generic ecosystem
  • Out of Bound Write on WibuKey for WindowsSame generic ecosystem
  • wifi: mac80211: set up the TX info early to fix failure pathsSame generic ecosystem
  • wifi: mac80211: mesh: release the channel if start failsSame generic ecosystem
  • wifi: mac80211: mesh: reset the CSA state when leavingSame generic ecosystem
  • wifi: mac80211: add HE 6 GHz capability in the scan elems lenSame generic ecosystem

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 6, 2026
References
2 linked sources
Open source record