What is the CVSS score of CVE-2018-16459?

CVE-2018-16459 has a CVSS 3.0 base score of 6.1 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.8%.

Is there a public PoC exploit available for CVE-2018-16459?

Yes, a public proof-of-concept exploit is available for CVE-2018-16459. Prioritise patching immediately. EPSS: 0.8%.

Is there a patch available for CVE-2018-16459?

Yes, a patch is available for CVE-2018-16459. Update the affected software to the latest version immediately.

Exceljs CVE-2018-16459

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2018-09-06 support@hackerone.com

XSS Exceljs

6.1

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Sep 06, 2018 - 13:29 nvd

MEDIUM 6.1

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 npm packages depend on exceljs (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 1.6.0.

DescriptionNVD

An unescaped payload in exceljs <v1.6 allows a possible XSS via cell value when worksheet is displayed in browser.

AnalysisAI

An unescaped payload in exceljs <v1.6 allows a possible XSS via cell value when worksheet is displayed in browser. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. An unescaped payload in exceljs <v1.6 allows a possible XSS via cell value when worksheet is displayed in browser. Affected products include: Exceljs Project Exceljs.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.