CVE-2025-34236Advantech WebAccess/VPN < 1.1.5 Stored XSS via NetworksController.addNetworkAction()
Updated under an hour ago ()
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It affects Advantech WebAccess/VPN and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
Advantech WebAccess/VPN versions prior to 1.1.5 contain a stored cross-site scripting (XSS) vulnerability via NetworksController.addNetworkAction(). Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.
- CVSS
- 6.2 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- Nov 17, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Advantech WebAccess/VPN advantech:webaccess_vpn (from the name) | before 1.1.5 | CNA record |
advantech webaccess/vpn advantech:webaccess/vpn | before 1.1.5 | NVD |
References
- https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdfvendor-advisory, patch, release-notes
- https://www.vulncheck.com/advisories/advantech-webaccess-vpn-stored-xss-via-networkcontrollerthird-party-advisory
- https://icr.advantech.com/download/softwareproduct
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.