Security readout for executives and security teams
Plain-English summary
CVE-2026-1513 is a cross-site scripting issue in NAVER billboard.js. If an application binds untrusted data into chart options, a user could be tricked into running attacker-supplied JavaScript in their browser. The issue is rated medium, but impact depends on where billboard.js is used and whether chart inputs are user-controlled.
Executive priority
Prioritize review for internet-facing applications, customer portals, dashboards, or admin tools that render charts from dynamic data. This is not a confirmed mass-exploitation emergency, but XSS can affect users, sessions, and trust in web applications.
Technical view
The CVE describes improper sanitization during chart option binding in billboard.js before 3.18.0, mapped to CWE-79. CVSS 3.1 is 6.1: network exploitable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.
Likely exposure
Organizations are likely exposed where web applications include billboard.js versions described by the advisory and pass user-controlled or externally sourced values into chart configuration or option binding. Exposure is lower for internal-only charts using trusted static data.
Exploitation context
No active exploitation is indicated in the provided sources, and the CVE is not listed as KEV in the supplied bundle. Successful exploitation requires user interaction and a vulnerable application context where malicious chart-related input can reach option binding.
Researcher notes
There is a minor data inconsistency in the provided bundle: the description says “before 3.18.0,” while the affected version entry lists 3.18.0. Treat the vendor advisory as authoritative and verify exact version ranges before closure.
Mitigation direction
- Inventory applications using billboard.js.
- Check installed billboard.js version against the NAVER advisory.
- Upgrade to a non-affected release if vendor guidance confirms availability.
- Avoid binding untrusted input into chart options.
- Apply output sanitization and content security policy where appropriate.
Validation and detection
- Review package manifests and bundled frontend assets for billboard.js.
- Identify chart option values sourced from users, URLs, APIs, or CMS content.
- Confirm whether deployed versions are before 3.18.0 per the CVE description.
- Check vendor advisory for exact affected and fixed version details.
- Test fixes in staging for chart rendering and security regressions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-1513 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://cve.naver.com/detail/cve-2026-1513.htmlCVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.