Cross-site scripting in Six Apart Ltd. Movable Type 7
Priority LOW 25CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
Cross-site scripting vulnerability in Movable Type series allows a remote authenticated attacker to inject an arbitrary script. Affected products/versions are as follows: Movable Type 7 r.5405 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5405 and earlier (Movable Type 7 Series), Movable Type Premium 1.58 and earlier, Movable Type Premium Advanced 1.58 and earlier, Movable Type Cloud Edition (Version 7) r.5405 and earlier, and Movable Type Premium Cloud Edition 1.58 and earlier.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00441 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Six Apart Ltd. | Movable Type 7 (Movable Type 7 Series) | r.5405 and earlier | — | No fix listed | CNA |
| Six Apart Ltd. | Movable Type Advanced 7 (Movable Type 7 Series) | r.5405 and earlier | — | No fix listed | CNA |
| Six Apart Ltd. | Movable Type Premium | up to 1.58 | — | No fix listed | CNA |
| Six Apart Ltd. | Movable Type Premium Advanced | up to 1.58 | — | No fix listed | CNA |
| Six Apart Ltd. | Movable Type Cloud Edition (Version 7) | r.5405 and earlier | — | No fix listed | CNA |
| Six Apart Ltd. | Movable Type Premium Cloud Edition | up to 1.58 | — | No fix listed | CNA |
- Movable Type 7 (Movable Type 7 Series) VendorSix Apart Ltd. Affected r.5405 and earlier Fixed in — No fix listed CNA
- Movable Type Advanced 7 (Movable Type 7 Series) VendorSix Apart Ltd. Affected r.5405 and earlier Fixed in — No fix listed CNA
- Movable Type Premium VendorSix Apart Ltd. Affected up to 1.58 Fixed in — No fix listed CNA
- Movable Type Premium Advanced VendorSix Apart Ltd. Affected up to 1.58 Fixed in — No fix listed CNA
- Movable Type Cloud Edition (Version 7) VendorSix Apart Ltd. Affected r.5405 and earlier Fixed in — No fix listed CNA
- Movable Type Premium Cloud Edition VendorSix Apart Ltd. Affected up to 1.58 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sixapart:movable_type:*:*:*:*:*:*:*:* | before 7.902.0 | Vulnerable | Sixapart |
| cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:* | before 7.902.0 | Vulnerable | Sixapart |
| cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:* | before 1.59 | Vulnerable | Sixapart |
| cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:* | before 1.59 | Vulnerable | Sixapart |
| cpe:2.3:a:sixapart:movable_type:*:*:*:*:aws:*:*:* | before 7.902.0 | Vulnerable | Sixapart |
| cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced_aws:*:*:* | before 1.59 | Vulnerable | Sixapart |
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:*:*:*:* Versions before 7.902.0 Vulnerable ·Sixapart
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:* Versions before 7.902.0 Vulnerable ·Sixapart
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:* Versions before 1.59 Vulnerable ·Sixapart
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:* Versions before 1.59 Vulnerable ·Sixapart
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:aws:*:*:* Versions before 7.902.0 Vulnerable ·Sixapart
- cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced_aws:*:*:* Versions before 1.59 Vulnerable ·Sixapart
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-45746
- 2026-10-03 Alias added: GHSA-wpjj-rrr4-p36v
References
More Six Apart Ltd. vulnerabilities
- TI-2021-04052 OS command injection in Six Apart Ltd. Movable Type CVSS 3.1CRITICAL 9.8
- TI-2026-20843 Code injection in Six Apart Ltd. Movable Type CVSS 4.0CRITICAL 9.3
- TI-2026-69104 Code injection in Movable Type upgrade script CVSS 4.0CRITICAL 9.3
- TI-2022-17791 Code injection in Six Apart Ltd. Movable Type XMLRPC API CVSS 3.1CRITICAL 9.8
- TI-2026-69105 SQL injection in Movable Type Site Search function CVSS 4.0HIGH 8.8
- TI-2020-04547 Unrestricted file upload in Six Apart Ltd. Movable Type CVSS 3.1HIGH 8.8
Sources
- CVE-2023-45746 · CVE Program
- CVE-2023-45746 · NVD
- FIRST EPSS
- GHSA-wpjj-rrr4-p36v · 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