Lemonldap
CVE-2024-48933
MEDIUM
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. |
| 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. |
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Alert meAnalysisAI
A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote attackers to inject arbitrary web script or HTML into the login page via a username if userControl has been set. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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
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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 in LemonLDAP::NG before 2.19.3 allows remote attackers to inject arbitrary web script or HTML into the login page via a username if userControl has been set to a non-default value that allows special HTML characters. Affected products include: Lemonldap-Ng Lemonldap\. Version information: before 2.19.3.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
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
DescriptionNVD
A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote attackers to inject arbitrary web script or HTML into the login page via a username if userControl has been set to a non-default value that allows special HTML characters.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
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
An issue was discovered in LemonLDAP::NG before 2.16.1. Rated critical severity (CVSS 9.8), this vulnerability is remote
An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. Rated critical severity (CVSS 9.8), this vul
LemonLDAP::NG -2.0.3 has Incorrect Access Control. Rated critical severity (CVSS 9.8), this vulnerability is remotely ex
An issue was discovered in LemonLDAP::NG before 2.0.12. Rated high severity (CVSS 8.8), this vulnerability is remotely e
OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a craf
LemonLDAP::NG before 1.9.20 has an XML External Entity (XXE) issue when submitting a notification to the notification se
LemonLDAP::NG before 1.2.3 does not use the signature-verification capability of the Lasso library, which allows remote
A Server-Side Request Forgery issue in the OpenID Connect Issuer in LemonLDAP::NG before 2.17.1 allows authenticated rem
NVD
CVE.org
EPSS
GitHub PoC
Exploit-DB