Cross-site scripting (XSS) vulnerability in the "Create download task via file upload" feature in Synology Download Station before 3.5-2962…

published 2015-09-11 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-6845

cvss: 4.3; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.1%; EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits: 0; none known

Cross-site scripting (XSS) vulnerability in the "Create download task via file upload" feature in Synology Download Station before 3.5-2962 allows remote attackers to inject arbitrary web script or HTML via the name element in the Info dictionary in a torrent file.

Exploit prediction

2.09% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

securify.nl https://www.securify.nl/advisory/SFY20150809/multiple_cross_site_scripting_vulnerabilities_in_synology_download_station.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

CVE List CVE-2015-6909
NVD CVE-2015-6909

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary