CVE-2021-4296

low-risk
Published 2022-12-29

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.

Do I need to act?

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0.27% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.5/10 Low
NETWORK / LOW complexity

Affected Products (1)

Unicorn

Affected Vendors

W3

References (8)

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
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
22
/ 100
low-risk
Severity 16/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal