Vulnerability · Published Jan 16, 2026 · Assigned by naver
CVE-2026-23769
Medium 6.5
In plain English
A medium-severity cross-site scripting in lucy-xss-filter from NAVER. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.2%top 87.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NAVER | lucy-xss-filter | see references |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- https://cve.naver.com/detail/cve-2026-23769.html vendor-advisory
- https://github.com/naver/lucy-xss-filter/pull/32 mitigation