Synology RADIUS Server prior 3.0.27-0139 cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Synology RADIUS Server. This issue affects some unknown processing. The manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2024-13987. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Synology RADIUS Server. It has been rated as problematic. This issue affects an unknown functionality. 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. The summary by CVE is:

Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Synology RADIUS Server before 3.0.27-0139 allows remote authenticated users with administrator privileges to read or write limited files in SRM and conduct limited denial-of-service via unspecified vectors.

The weakness was published by Only Hack In Cave as SA_25_10. It is possible to read the advisory at synology.com. The identification of this vulnerability is CVE-2024-13987 since 08/29/2025. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 3.0.27-0139 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2024-54937) and CERT Bund (WID-SEC-2025-1927). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Synology Router Manager

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.9
CNA Vector (synology): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: RADIUS Server 3.0.27-0139

Timelineinfo

08/29/2025 Advisory disclosed
08/29/2025 +0 days CVE reserved
08/29/2025 +0 days VulDB entry created
09/01/2025 +3 days VulDB entry last update

Sourcesinfo

Vendor: synology.com

Advisory: SA_25_10
Researcher: Only Hack In Cave
Status: Confirmed

CVE: CVE-2024-13987 (🔒)
GCVE (CVE): GCVE-0-2024-13987
GCVE (VulDB): GCVE-100-321875
EUVD: 🔒
CERT Bund: WID-SEC-2025-1927 - Synology RADIUS Server für Synology Router Manager: Schwachstelle ermöglicht Offenlegung und Manipulation von Dateien

Entryinfo

Created: 08/29/2025 10:09
Updated: 09/01/2025 23:43
Changes: 08/29/2025 10:09 (31), 08/29/2025 10:10 (33), 09/01/2025 05:28 (7), 09/01/2025 23:43 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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