A cross-site scripting (XSS) vulnerability in the CGI program of the Zyxel ATP series firmware versions 5.10 through 5.37, USG FLEX series firmware versions 5.00 through 5.37, USG FLEX 50(W) series firmware versions 5.10 through 5.37, USG20(W)-VPN series firmware versions 5.10 through 5.37, and VPN series firmware versions 5.00 through 5.37, could allow an unauthenticated LAN-based attacker to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed to steal cookies when the user visits the specific CGI used for dumping ZTP logs.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
ATP series firmware
Vendor
Zyxel
Product
ATP series firmware
Platforms
Unknown
Default status
unaffected
ATP series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
versions 5.10 through 5.37
affected
Unavailable
Unavailable
Unavailable
None listed
USG FLEX series firmware
Vendor
Zyxel
Product
USG FLEX series firmware
Platforms
Unknown
Default status
unaffected
USG FLEX series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
versions 5.00 through 5.37
affected
Unavailable
Unavailable
Unavailable
None listed
USG FLEX 50(W) series firmware
Vendor
Zyxel
Product
USG FLEX 50(W) series firmware
Platforms
Unknown
Default status
unaffected
USG FLEX 50(W) series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
versions 5.10 through 5.37
affected
Unavailable
Unavailable
Unavailable
None listed
USG20(W)-VPN series firmware
Vendor
Zyxel
Product
USG20(W)-VPN series firmware
Platforms
Unknown
Default status
unaffected
USG20(W)-VPN series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
versions 5.10 through 5.37
affected
Unavailable
Unavailable
Unavailable
None listed
VPN series firmware
Vendor
Zyxel
Product
VPN series firmware
Platforms
Unknown
Default status
unaffected
VPN series firmware · Scoped product and version facts