Skip to main content

Openwrt CVE-2018-19630

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2018-11-28 cve@mitre.org
6.1
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
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.

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 0.7% exploitation probability (EPSS)

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

Alert me

AnalysisAI

cgi_handle_request in uhttpd in OpenWrt through 18.06.1 and LEDE through 17.01 has unauthenticated reflected XSS via the URI, as demonstrated by a cgi-bin/?[XSS] URI. 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. cgi_handle_request in uhttpd in OpenWrt through 18.06.1 and LEDE through 17.01 has unauthenticated reflected XSS via the URI, as demonstrated by a cgi-bin/?[XSS] URI. Affected products include: Openwrt Lede, Openwrt. Version information: through 18.06.1.

Know when Openwrt 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

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

cgi_handle_request in uhttpd in OpenWrt through 18.06.1 and LEDE through 17.01 has unauthenticated reflected XSS via the URI, as demonstrated by a cgi-bin/?[XSS] URI.

Threat Intelligence Overview

EPSS Score
0.7%
Top 53% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

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 0.7%
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.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

51
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +30
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)NVD

cpe:2.3:o:openwrt:lede:*:*:*:*:*:*:*:*
cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*
CVE-2024-20017 CRITICAL POC
9.8 Mar 04

In wlan service, there is a possible out of bounds write due to improper input validation. Rated critical severity (CVSS

CVE-2020-7982 HIGH POC
8.1 Mar 16

An issue was discovered in OpenWrt 18.06.0 to 18.06.6 and 19.07.0, and LEDE 17.01.0 to 17.01.7. Rated high severity (CVS

CVE-2019-15513 HIGH POC
7.5 Aug 23

An issue was discovered in OpenWrt libuci (aka Library for the Unified Configuration Interface) before 15.05.1 as used o

CVE-2025-20654 CRITICAL
9.8 Apr 07

In wlan service, there is a possible out of bounds write due to an incorrect bounds check. Rated critical severity (CVSS

CVE-2019-5102 MEDIUM POC
5.9 Nov 18

An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1

CVE-2019-5101 MEDIUM POC
5.9 Nov 18

An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1

CVE-2025-20674 CRITICAL
9.8 Jun 02

Remote privilege escalation in Android WLAN AP driver via packet injection.

CVE-2025-20683 CRITICAL
9.8 Jul 08

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local es

CVE-2025-20682 CRITICAL
9.8 Jul 08

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local es

CVE-2025-20681 CRITICAL
9.8 Jul 08

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local es

CVE-2026-30872 CRITICAL
9.8 Mar 19

Remote code execution in OpenWrt's mDNS daemon (versions before 24.10.6 and 25.12.1) allows unauthenticated attackers to

CVE-2026-30871 CRITICAL
9.8 Mar 19

Remote code execution in OpenWrt mdns daemon (versions before 24.10.6 and 25.12.1) allows unauthenticated attackers to c

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy