Cross-site scripting (XSS) vulnerability in Six Apart (formerly Six Apart KK) Movable…
Priority LOW 24CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Cross-site scripting (XSS) vulnerability in Six Apart (formerly Six Apart KK) Movable Type (MT) Pro 5.13 allows remote attackers to inject arbitrary web script or HTML via the comment section.
Why it matters now
EPSS 0.02006 80th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1503
- 2026-10-03 Alias added: GHSA-crq9-rq4m-26gj
References
More Sixapart Movable Type vulnerabilities
- TI-2021-04052 OS command injection in Six Apart Ltd. Movable Type CVSS 3.1CRITICAL 9.8
- TI-2015-01424 Movable Type Pro, Open Source, and Advanced before 5.2.12 and Pro and Advanced 6.0.x… CVSS 2.0HIGH 7.5
- TI-2013-00143 lib/MT/Upgrade.pm in mt-upgrade.cgi in Movable Type 4.2x and 4.3x through 4.38 does not… CVSS 2.0HIGH 7.5
- TI-2026-20843 Code injection in Six Apart Ltd. Movable Type CVSS 4.0CRITICAL 9.3
- TI-2022-17791 Code injection in Six Apart Ltd. Movable Type XMLRPC API CVSS 3.1CRITICAL 9.8
- TI-2009-00717 Unspecified vulnerability in Movable Type Pro and Community Solution 4.x before 4.24 has… CVSS 2.0HIGH 10.0
Sources
- CVE-2012-1503 · CVE Program
- CVE-2012-1503 · NVD
- FIRST EPSS
- GHSA-crq9-rq4m-26gj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences