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Basercms CVE-2024-46995

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2024-10-24 security-advisories@github.com
6.1
CVSS 3.1 · 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.

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).
Patch available 0.3% exploitation probability (EPSS)

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AnalysisAI

baserCMS is a website development framework. 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.

Affected Packages

composer baserproject/basercms fix: 5.1.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

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. baserCMS is a website development framework. Versions prior to 5.1.2 have a cross-site scripting vulnerability in HTTP 400 Bad Request. Version 5.1.2 fixes this issue. Affected products include: Basercms. Version information: prior to 5.1.2.

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  • Exploit and PoC references, threat intelligence from 22 sources

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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

baserCMS is a website development framework. Versions prior to 5.1.2 have a cross-site scripting vulnerability in HTTP 400 Bad Request. Version 5.1.2 fixes this issue.

Threat Intelligence Overview

EPSS Score
0.3%
Top 80% exploitable
Data Quality
3 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 No
EPSS 0.3%
Patch available Yes
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
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
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:a:basercms:basercms:*:*:*:*:*:*:*:*
CVE-2018-18942 HIGH POC
7.2 Nov 05

In baserCMS before 4.1.4, lib\Baser\Model\ThemeConfig.php allows remote attackers to execute arbitrary PHP code via the

CVE-2017-10842 CRITICAL
9.8 Aug 29

SQL injection vulnerability in the baserCMS 3.0.14 and earlier, 4.0.5 and earlier allows remote attackers to execute arb

CVE-2023-43792 CRITICAL
9.8 Oct 30

baserCMS is a website development framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploita

CVE-2023-43649 CRITICAL
9.8 Oct 30

baserCMS is a website development framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploita

CVE-2023-25655 CRITICAL
9.8 Mar 23

baserCMS is a Content Management system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,

CVE-2023-25654 CRITICAL
9.8 Mar 23

baserCMS is a Content Management system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,

CVE-2026-30880 CRITICAL
9.2 Mar 31

OS command injection in baserCMS installer prior to version 5.2.3 allows remote attackers to execute arbitrary system co

CVE-2026-30877 CRITICAL
9.1 Mar 31

OS command injection in baserCMS update functionality allows authenticated administrators to execute arbitrary commands

CVE-2026-21861 CRITICAL
9.1 Mar 31

OS command injection in baserCMS core update functionality allows authenticated administrators to execute arbitrary syst

CVE-2017-10844 HIGH
8.8 Aug 29

baserCMS 3.0.14 and earlier, 4.0.5 and earlier allows an attacker to execute arbitrary PHP code on the server via unspec

CVE-2016-4879 HIGH
8.8 May 12

Cross-site request forgery (CSRF) vulnerability in baserCMS plugin Mail version 3.0.10 and earlier allows remote attacke

CVE-2016-4881 HIGH
8.8 May 12

Cross-site request forgery (CSRF) vulnerability in baserCMS plugin Blog version 3.0.10 and earlier allows remote attacke

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