CVE-2008-4634

Cross-site scripting (XSS) vulnerability in Movable Type 4 through 4.21 allows remote attackers to inject arbitrary web script or HTML via unknown vectors related to the administrative page, a different vulnerability than CVE-2008-4079.

Published: 2008-10-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-4634 is rated Low Risk (35.2/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2008-4634

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.34% 1.02% +0.68%
2 2025-03-17 0.11% 0.34% +0.22%
3 2023-03-07 — 0.11% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-4634

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2008-4634

OS Trackers for CVE-2008-4634

vendor priority summary link
ubuntu low CVE-2008-4634 low priority: Ubuntu including 1 source packages (movabletype-opensource), 7 status rows across 7 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, upstream): DNE 3, not-affected 2, ignored 1, released 1. https://ubuntu.com/security/CVE-2008-4634

Affected software / configurations for CVE-2008-4634

Vendor Product Version Raw CPE
six_apart movable_type 4 cpe:2.3:a:six_apart:movable_type:4:*:*:*:*:*:*:*
six_apart movable_type 4 cpe:2.3:a:six_apart:movable_type:4:unknown:community_solution:*:*:*:*:*
six_apart movable_type 4 cpe:2.3:a:six_apart:movable_type:4:unknown:enterprise:*:*:*:*:*
six_apart movable_type 4 cpe:2.3:a:six_apart:movable_type:4:unknown:open_source:*:*:*:*:*
six_apart movable_type 4.20 cpe:2.3:a:six_apart:movable_type:4.20:*:*:*:*:*:*:*
six_apart movable_type 4.20 cpe:2.3:a:six_apart:movable_type:4.20:unknown:community_solution:*:*:*:*:*
six_apart movable_type 4.20 cpe:2.3:a:six_apart:movable_type:4.20:unknown:enterprise:*:*:*:*:*
six_apart movable_type 4.20 cpe:2.3:a:six_apart:movable_type:4.20:unknown:open_source:*:*:*:*:*

References for CVE-2008-4634

cvelogic Threat Intelligence