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Movable Type CVE-2013-0209

HIGH
Improper Authentication (CWE-287)
2013-01-23 secalert@redhat.com
7.5
CVSS 2.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK

2 techniques across 2 tactics: Defense Evasion, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 80.63%.

Exploit ScenarioDerived

A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application.

Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.
Patch available 80.6% exploitation probability (EPSS)

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AnalysisAI

lib/MT/Upgrade.pm in mt-upgrade.cgi in Movable Type 4.2x and 4.3x through 4.38 does not require authentication for requests to database-migration functions, which allows remote attackers to conduct. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 80.6%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

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 Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. lib/MT/Upgrade.pm in mt-upgrade.cgi in Movable Type 4.2x and 4.3x through 4.38 does not require authentication for requests to database-migration functions, which allows remote attackers to conduct eval injection and SQL injection attacks via crafted parameters, as demonstrated by an eval injection attack against the core_drop_meta_for_table function, leading to execution of arbitrary Perl code. Affected products include: Sixapart Movable Type. Version information: through 4.38.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
P
Integrity
P
Availability
P

DescriptionCVE.org

lib/MT/Upgrade.pm in mt-upgrade.cgi in Movable Type 4.2x and 4.3x through 4.38 does not require authentication for requests to database-migration functions, which allows remote attackers to conduct eval injection and SQL injection attacks via crafted parameters, as demonstrated by an eval injection attack against the core_drop_meta_for_table function, leading to execution of arbitrary Perl code.

Threat Intelligence Overview

Threat Score
5.4/10
Composite threat intelligence
EPSS Score
80.6%
Top 1% exploitable
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium

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 HIGH
CISA KEV No
Public POC Yes
EPSS 80.6%
Patch available Yes
Active threat Yes
Deciding rule
HIGH severity + EPSS > 10%
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
Out-of-Cycle
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
High

Priority Score

154
Low Medium High Critical
KEV: 0
EPSS: +81
CVSS: +38
PoC: +20
Weaponized: +15
Threat intel: 0
Gov advisory: 0

Attack Technique

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:sixapart:movable_type:4.21:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.22:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.23:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.24:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.25:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.26:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.27:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.28:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.28:*:enterprise:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.28:*:open_source:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.29:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.29:*:enterprise:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.29:*:open_source:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.31:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.32:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.33:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.34:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.35:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.36:*:*:*:*:*:*:*
cpe:2.3:a:sixapart:movable_type:4.37:*:*:*:*:*:*:*
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