CVE-2021-3830
CVE-2021-3830 — Cross-site Scripting (XSS) - Stored in btcpayserver/btcpayserver
btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published Updated Sources: cvelistV5, @huntrdev
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
1%
chance of exploitation in 30 days
CVSS base
3.8
LOW
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 3.8 | CVSS 3.0 | LOW | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-79
References
2 on the record
- github.com/btcpayserver/btcpayserver/commit/fc4e47cec608cc3dba24b19d0145ac69320b975e
x_refsource_MISC
- huntr.dev/bounties/0fcdee5f-1f07-47ce-b650-ea8b4a7d35d8
x_refsource_CONFIRM
Elsewhere on this site
- btcpayserverevery CVE for this vendor
- CWE-79other pages naming this weakness
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.