NAVER lucy-xss-filter prior e5826c0d26b4f546955279767bbe94e5c7ed3f15 Superset Rule File cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in NAVER lucy-xss-filter. This affects an unknown part of the component Superset Rule File Handler. Such manipulation leads to cross site scripting. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is uniquely identified as CVE-2026-23769. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in NAVER lucy-xss-filter. Affected by this issue is an unknown functionality of the component Superset Rule File Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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

The weakness was disclosed by Younghun Ko. The advisory is shared for download at cve.naver.com. This vulnerability is handled as CVE-2026-23769 since 01/16/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version e5826c0d26b4f546955279767bbe94e5c7ed3f15 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: lucy-xss-filter e5826c0d26b4f546955279767bbe94e5c7ed3f15
Patch: github.com

Timelineinfo

01/16/2026 Advisory disclosed
01/16/2026 +0 days CVE reserved
01/16/2026 +0 days VulDB entry created
01/24/2026 +8 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: cve.naver.com
Researcher: Younghun Ko
Status: Confirmed

CVE: CVE-2026-23769 (🔒)
GCVE (CVE): GCVE-0-2026-23769
GCVE (VulDB): GCVE-100-341552

Entryinfo

Created: 01/16/2026 09:58
Updated: 01/24/2026 14:14
Changes: 01/16/2026 09:58 (57), 01/24/2026 14:14 (11)
Complete: 🔍
Cache ID: 216::103

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