What is the CVSS score of CVE-2018-18291?

CVE-2018-18291 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-2018-18291?

Yes, a public proof-of-concept exploit is available for CVE-2018-18291. Prioritise patching immediately. EPSS: 0.8%.

Rt Ac58U Firmware CVE-2018-18291

MEDIUM

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

2018-10-14 cve@mitre.org

XSS Rt Ac58U Firmware Asus

6.1

CVSS 3.0 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-79 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Output encoding, context-aware escaping MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.8% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

A cross site scripting (XSS) vulnerability on ASUS RT-AC58U 3.0.0.4.380_6516 devices allows remote attackers to inject arbitrary web script or HTML via Advanced_ASUSDDNS_Content.asp,. 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.

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.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

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. A cross site scripting (XSS) vulnerability on ASUS RT-AC58U 3.0.0.4.380_6516 devices allows remote attackers to inject arbitrary web script or HTML via Advanced_ASUSDDNS_Content.asp, Advanced_WSecurity_Content.asp, Advanced_Wireless_Content.asp, Logout.asp, Main_Login.asp, MobileQIS_Login.asp, QIS_wizard.htma, YandexDNS.asp, ajax_status.xml, apply.cgi, clients.asp, disk.asp, disk_utility.asp, or internet.asp. Affected products include: Asus Rt-Ac58U Firmware.

Know when Rt Ac58U Firmware gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

DescriptionNVD

A cross site scripting (XSS) vulnerability on ASUS RT-AC58U 3.0.0.4.380_6516 devices allows remote attackers to inject arbitrary web script or HTML via Advanced_ASUSDDNS_Content.asp, Advanced_WSecurity_Content.asp, Advanced_Wireless_Content.asp, Logout.asp, Main_Login.asp, MobileQIS_Login.asp, QIS_wizard.htma, YandexDNS.asp, ajax_status.xml, apply.cgi, clients.asp, disk.asp, disk_utility.asp, or internet.asp.

Threat Intelligence Overview

EPSS Score

0.8%

Top 47% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.8%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.