Security readout for executives and security teams
Plain-English summary
CVE-2023-0748 is an open redirect in BTCPay Server before version 1.7.6. It could let a trusted BTCPay URL send a user to an attacker-controlled destination. The CVSS vector indicates exploitation needs high privileges and user interaction, which reduces urgency compared with remotely exploitable unauthenticated flaws.
Executive priority
Schedule remediation in the normal vulnerability cycle, sooner for internet-facing or high-trust payment environments. The flaw is medium severity with meaningful abuse potential, but the stated privileges and interaction requirements reduce emergency urgency.
Technical view
The issue is CWE-601 in btcpayserver/btcpayserver prior to 1.7.6. The supplied CVSS 3.1 score is 6.4 with AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H. Public sources identify a fixing commit and huntr report, but the bundle does not include detailed affected endpoint behavior.
Likely exposure
Exposure is limited to organizations running BTCPay Server versions before 1.7.6. Publicly reachable instances have more phishing and trust-abuse risk, but the CVSS vector says a high-privilege actor and user interaction are required.
Exploitation context
The source bundle does not show active exploitation, and CISA KEV status is false. Treat this as a credible application security weakness, not a confirmed in-the-wild incident, unless local telemetry or vendor updates indicate otherwise.
Researcher notes
The public bundle confirms the product, vulnerability class, version boundary, CVSS vector, and references. It does not provide enough source-grounded detail to name specific routes, payloads, or exploitation prerequisites beyond the CVSS fields.
Mitigation direction
- Upgrade BTCPay Server to version 1.7.6 or later.
- Review the BTCPay Server advisory and fixing commit for deployment-specific guidance.
- Restrict privileged account access to trusted administrators only.
- Monitor vendor channels for any revised affected-version or mitigation details.
Validation and detection
- Inventory all BTCPay Server instances and record their exact versions.
- Confirm no instance remains below version 1.7.6.
- Review access logs for unusual redirect-related traffic patterns.
- Confirm privileged accounts are current, necessary, and protected with strong authentication.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-601: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-0748 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H0.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
URL Redirection to Untrusted Site ('Open Redirect')
URL Redirection to Untrusted Site ('Open Redirect') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.