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TI-2025-38741 Aliases CVE-2025-62499GHSA-vrjm-xv6p-hpjc

Cross-site scripting in Six Apart Ltd. Movable Type

Priority LOW 21CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Movable Type contains a stored cross-site scripting vulnerability in Edit CategorySet of ContentType page. If crafted input is stored by an attacker with "ContentType Management" privilege, an arbitrary script may be executed on the web browser of the user who accesses Edit CategorySet of ContentType page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00234 14th 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

VendorProductAffected versionsFixed inStatusSource
Six Apart Ltd.Movable Type (Software Edition)8.4.0 to 8.4.3 (8.4 series); 8.0.0 to 8.0.7 (8.0 series); 7 r.5509 and earlier (7 series)—No fix listedCNA
Six Apart Ltd.Movable Type Advanced (Software Edition)8.4.0 to 8.4.3 (8.4 series); 8.0.0 to 8.0.7 (8.0 series); 7 r.5509 and earlier (7 series)—No fix listedCNA
Six Apart Ltd.Movable Type Premium (Software Edition)2.10 and earlier (2 series); 1.67 and earlier (1 series)—No fix listedCNA
Six Apart Ltd.Movable Type Premium (Advanced Edition) (Software Edition)2.10 and earlier (2 series); 1.67 and earlier (1 series)—No fix listedCNA
Six Apart Ltd.Movable Type (Cloud Edition)8.7.0 (8 series); 7 r.5509 (7 series)—No fix listedCNA
Six Apart Ltd.Movable Type Premium (Cloud Edition)2.10 (2 series); 1.67 (1 series)—No fix listedCNA
  • Movable Type (Software Edition) VendorSix Apart Ltd. Affected 8.4.0 to 8.4.3 (8.4 series); 8.0.0 to 8.0.7 (8.0 series); 7 r.5509 and earlier (7 series) Fixed in — No fix listed CNA
  • Movable Type Advanced (Software Edition) VendorSix Apart Ltd. Affected 8.4.0 to 8.4.3 (8.4 series); 8.0.0 to 8.0.7 (8.0 series); 7 r.5509 and earlier (7 series) Fixed in — No fix listed CNA
  • Movable Type Premium (Software Edition) VendorSix Apart Ltd. Affected 2.10 and earlier (2 series); 1.67 and earlier (1 series) Fixed in — No fix listed CNA
  • Movable Type Premium (Advanced Edition) (Software Edition) VendorSix Apart Ltd. Affected 2.10 and earlier (2 series); 1.67 and earlier (1 series) Fixed in — No fix listed CNA
  • Movable Type (Cloud Edition) VendorSix Apart Ltd. Affected 8.7.0 (8 series); 7 r.5509 (7 series) Fixed in — No fix listed CNA
  • Movable Type Premium (Cloud Edition) VendorSix Apart Ltd. Affected 2.10 (2 series); 1.67 (1 series) Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-62499
  2. 2026-10-03 Alias added: GHSA-vrjm-xv6p-hpjc

References

Other 3

  • 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
See all 53 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences