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CVE-2013-0209

69
FAUCET Score

CVE-2013-0209 is a critical authentication bypass vulnerability affecting Movable Type versions 4.2x and 4.3x through 4.38. The flaw in lib/MT/Upgrade.pm allows unauthenticated remote attackers to exploit database-migration functions, leading to eval injection and SQL injection. This enables the execution of arbitrary Perl code, as demonstrated by attacks against the core_drop_meta_for_table function. With a CVSS score of 7.5 and an EPSS score of 0.806, this vulnerability presents a high risk, allowing for full compromise of confidentiality, integrity, and availability. Exploit code, including a Metasploit module, is publicly available, indicating a high potential for exploitation, despite a lack of broader community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.21CPE matchmatch criteria
cpe:2.3:a:sixapart:movable_type:4.21:*:*:*:*:*:*:*
4.22CPE matchmatch criteria
cpe:2.3:a:sixapart:movable_type:4.22:*:*:*:*:*:*:*
4.23CPE matchmatch criteria
cpe:2.3:a:sixapart:movable_type:4.23:*:*:*:*:*:*:*
4.24CPE matchmatch criteria
cpe:2.3:a:sixapart:movable_type:4.24:*:*:*:*:*:*:*
4.25CPE matchmatch criteria
cpe:2.3:a:sixapart:movable_type:4.25:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
45.20%
Probability of exploitation in next 30 days
EPSS Percentile
98.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Movable Type 4.2x, 4.3x Web Upgrade Remote Code Execution · Jan 7, 2013
ExploitDB: EDB-24321 · Jan 7, 2013
This CVE's current EPSS score of 0.4520 is in the 98th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

openwall.com / lists/oss-security/2013/01/22/3
movabletype.org / 2013/01/movable_type_438_patch.html
PatchVendor Advisory
sec-1.com / blog
Exploit
sec-1.com / blog/wp-content/uploads/2013/01/movabletype_upgrade_exec.rb_.txt
Exploit