Medium severity · published Dec 29, 2022
CVE-2021-4296
A vulnerability, which was classified as problematic, has been found in w3c Unicorn
6.1
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability, which was classified as problematic, has been found in w3c Unicorn. This issue affects the function ValidatorNuMessage of the file src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java. The manipulation of the argument message leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 51f75c31f7fc33859a9a571311c67ae4e95d9c68. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217019.
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)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UN
Unicorn · W3
before 2021-06-03 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4296
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4296
Patch
https://github.com/w3c/Unicorn/commit/51f75c31f7fc33859a9a571311c67ae4e95d9c68
Third Party Advisory
https://github.com/w3c/Unicorn/pull/212
Third Party Advisory
https://vuldb.com/?ctiid.217019
Third Party Advisory
https://vuldb.com/?id.217019