Cross-site scripting in Synology RADIUS Server
Priority LOW 26CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in Synology RADIUS Server allows remote authenticated users with administrator privileges to read or write limited files in SRM and conduct limited denial-of-service via unspecified vectors.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00265 18th percentileScored 2026-11-07
Fix Fixed RADIUS Server (Synology): 3.0.27-0453, 3.0.27-0516, 3.0.27-0139
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 |
|---|---|---|---|---|---|
| Synology | RADIUS Server | before 3.0.27-0453; before 3.0.27-0516; before 3.0.27-0139 | 3.0.27-0453, 3.0.27-0516, 3.0.27-0139 | Patch available | CNA |
- RADIUS Server VendorSynology Affected before 3.0.27-0453; before 3.0.27-0516; before 3.0.27-0139 Fixed in 3.0.27-0453, 3.0.27-0516, 3.0.27-0139 Patch available CNA
Remediation
- Fix · CNA RADIUS Server (Synology) Fixed in 3.0.27-0453, 3.0.27-0516, 3.0.27-0139
Timeline
- 2026-10-02 Threatist record created from CVE-2024-13987
- 2026-10-03 Alias added: GHSA-99x8-9r3q-x8jw
References
Advisory 1
More Synology vulnerabilities
- TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2021-02242 Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer… KEVCVSS 3.1HIGH 7.8
- TI-2018-01076 Out-of-bounds write in Netatalk CVSS 3.1CRITICAL 9.8
- TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
- TI-2013-05716 webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2… CVSS 2.0HIGH 10.0
- TI-2021-19843 Out-of-bounds read in Samba CVSS 3.1HIGH 8.8
Sources
- CVE-2024-13987 · CVE Program
- CVE-2024-13987 · NVD
- FIRST EPSS
- GHSA-99x8-9r3q-x8jw · GitHub Advisory Database · CC BY 4.0
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