CVE-2026-23769

MEDIUM
6.1
CVSS Score
Published: January 16, 2026 at 05:23 AM UTC
Updated: June 17, 2026 at 10:22 AM UTC
1 product affected across 1 vendorlucy-xss-filter

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

lucy-xss-filter before commit e5826c0 allows an attacker to execute malicious JavaScript due to improper sanitization caused by misconfigured default superset rule files.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2025-06-08
Vendor states this is fixed in e5826c0d26b4f546955279767bbe94e5c7ed3f15 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Vendor Advisory
Source: cverecord
https://cve.naver.com/detail/cve-2026-23769.html
MitigationPatch
Source: cverecord
https://github.com/naver/lucy-xss-filter/pull/32

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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