How severe is CVE-2023-0879?

CVE-2023-0879 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-0879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0879?

CVE-2023-0879 affects Btcpayserver Btcpay Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0879?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0879 published?

CVE-2023-0879 was published on 2023-02-17 and last updated on 2026-06-17.

CVE-2023-0879

CVE-2023-0879 is a medium-severity vulnerability in Btcpayserver Btcpay Server with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Btcpayserver Btcpay Server
Published: 2023-02-17
Last modified: 2026-06-17

Description

Cross-site Scripting (XSS) - Stored in GitHub repository btcpayserver/btcpayserver prior to 1.7.12.

Frequently asked questions

What is CVE-2023-0879?: Cross-site Scripting (XSS) - Stored in GitHub repository btcpayserver/btcpayserver prior to 1.7.12.
How severe is CVE-2023-0879?: CVE-2023-0879 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-0879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0879?: CVE-2023-0879 affects Btcpayserver Btcpay Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0879 published?: CVE-2023-0879 was published on 2023-02-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:btcpayserver:btcpay_server:*:*:*:*:*:*:*:*

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