Medium severity · published Feb 6, 2026
CVE-2019-25294
html5_snmp 1.11 - 'Remark' Persistent Cross-Site Scripting
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
html5_snmp 1.11 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts through the 'Remark' parameter in add_router_operation.php. Attackers can craft a POST request with a script payload in the Remark field to execute arbitrary JavaScript in victim browsers when the page is loaded.
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)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HT
html5_snmp · lolypop55
1.11 · source: vendor
HS
Html5 Snmp · Lolypop55
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-25294
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-25294
Product
https://github.com/lolypop55/html5_snmp
Exploit
https://www.exploit-db.com/exploits/47587
Broken Link
https://www.vulncheck.com/advisories/htmlsnmp-remark-persistent-cross-site-scripting
More from html5_snmp
9.1
CVE-2019-25298
html5_snmp 1.11 - 'Router_ID' SQL Injection