Six Apart Movable Type Edit CategorySet of ContentType Page cross site scripting
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.6 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Six Apart Movable Type, Movable Type Advanced and Movable Type Premium. It has been declared as problematic. Affected is an unknown function of the component Edit CategorySet of ContentType Page. Such manipulation leads to cross site scripting. This vulnerability is documented as CVE-2025-62499. The attack can be executed remotely. There is not any exploit available.
Details
A vulnerability, which was classified as problematic, has been found in Six Apart Movable Type, Movable Type Advanced and Movable Type Premium (version now known). Affected by this issue is some unknown processing of the component Edit CategorySet of ContentType Page. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:
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.
The advisory is shared for download at movabletype.org. This vulnerability is handled as CVE-2025-62499 since 10/16/2025. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 3.6VulDB Meta Temp Score: 3.6
VulDB Base Score: 2.4
VulDB Temp Score: 2.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 4.8
CNA Vector (jpcert): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
10/16/2025 CVE reserved10/23/2025 Advisory disclosed
10/23/2025 VulDB entry created
10/23/2025 VulDB entry last update
Sources
Advisory: movabletype.orgStatus: Confirmed
CVE: CVE-2025-62499 (🔒)
GCVE (CVE): GCVE-0-2025-62499
GCVE (VulDB): GCVE-100-329636
Entry
Created: 10/23/2025 06:51Changes: 10/23/2025 06:51 (73)
Complete: 🔍
Cache ID: 216::103
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