Serenity Serene/StartSharp up to 6.6.x Temporary File Upload cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Serenity Serene and StartSharp up to 6.6.x and classified as problematic. This vulnerability affects unknown code of the component Temporary File Upload Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is registered as CVE-2023-31285. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Serenity Serene and StartSharp up to 6.6.x and classified as problematic. This vulnerability affects an unknown code of the component Temporary File Upload Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

An XSS issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. When users upload temporary files, some specific file endings are not allowed, but it is possible to upload .html or .htm files containing an XSS payload. The resulting link can be sent to an administrator user.

The weakness was published 04/27/2023 as 11b9d267f840513d04b4f4d4876de7823a6e48d2. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-31285 since 04/27/2023. 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.

Upgrading to version 6.7.0 eliminates this vulnerability. Applying the patch 11b9d267f840513d04b4f4d4876de7823a6e48d2 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-1246). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 6.1
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: 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: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Serene/StartSharp 6.7.0
Patch: 11b9d267f840513d04b4f4d4876de7823a6e48d2

Timelineinfo

04/27/2023 🔍
04/27/2023 +0 days 🔍
04/27/2023 +0 days 🔍
07/07/2025 +802 days 🔍

Sourcesinfo

Advisory: 11b9d267f840513d04b4f4d4876de7823a6e48d2
Status: Confirmed

CVE: CVE-2023-31285 (🔍)
GCVE (CVE): GCVE-0-2023-31285
GCVE (VulDB): GCVE-100-227560
EUVD: 🔍

Entryinfo

Created: 04/27/2023 07:24
Updated: 07/07/2025 16:30
Changes: 04/27/2023 07:24 (43), 01/31/2025 21:23 (35), 04/27/2025 01:03 (3), 07/07/2025 16:30 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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