Medium severity · published Aug 12, 2026
CVE-2026-19657
ScadaLTS Unauthenticated Reflected XSS
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
ScadaLTS 2.7.8.1 reflects user-supplied input into an HTML response without sanitization. An unauthenticated attacker who lures a victim into visiting a crafted URL can execute arbitrary JavaScript in the context of the victim's browser session.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SC
ScadaLTS · SCADA-LTS
2.7.8.1 · source: vendor
SC
Scada-lts · Scada-lts
2.7.8.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19657
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19657
Third Party Advisory
https://www.tenable.com/security/research/tra-2026-55
More from ScadaLTS
9.9
CVE-2026-19656
ScadaLTS Authenticated Remote Code Execution