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CVE-2026-23768

MEDIUM
6.1
CVSS Score
Published: January 16, 2026 at 05:20 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
PoC

Description

lucy-xss-filter before commit 7c1de6d allows an attacker to induce server-side HEAD requests to arbitrary URLs when the ObjectSecurityListener or EmbedSecurityListener option is enabled and embed or object tags are used with a src attribute missing a file extension.

Affected

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

lucy-xss-filter· Naver
95%
v < 2025-06-08
Vendor states this is fixed in 7c1de6db76749ceb7b382493da29c4348853cf6b (unaffected)

Remediation

No guide yet

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

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://cve.naver.com/detail/cve-2026-23768.html
MitigationExploitPatch
Source: cverecord
https://github.com/naver/lucy-xss-filter/pull/31

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

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

CVSS

6.1MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-918

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