COYO 9.0.8, 10.0.11 and 12.0.4 has cross-site scripting (XSS) via URLs used by "iFrame" widgets.

published 2019-03-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8328

cvss: 6.1; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.9%; EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits: 0; none known

Exploit prediction

1.88% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

packetstormsecurity.com http://packetstormsecurity.com/files/151467/COYO-9.0.8-10.0.11-12.0.4-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
seclists.org https://seclists.org/bugtraq/2019/Feb/0 referenced PoC, tagged "exploit" by a source, unverified
syss.de https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-032.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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

packetstormsecurity.com /files/151467/COYO-9.0.8-10.0.11-12.0.4-Cross-Site-Scripting.html
exploit, third-party-advisory, vdb-entry
seclists.org /bugtraq/2019/Feb/0
exploit, mailing-list, third-party-advisory
syss.de /fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-032.txt
exploit, third-party-advisory
coyoapp.de /en/blog
vendor-advisory

Sources

CVE List CVE-2018-16519
NVD CVE-2018-16519

Fencer Vulns 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