CVE-2023-1270Network attack vector

Browser script execution via Vue-parsed Razor output

Published Mar 8, 2023 · Updated Aug 2, 2024

Cross-site scripting in BTCPay Server before 1.8.3 allows remote authenticated users to execute JavaScript in another user's browser. Affected Razor views place user-controlled interpolation syntax inside Vue-parsed elements while the content security policy permits unsafe evaluation. Exploitation requires crafted content and another user to load an affected view, exposing that user's session-scoped data or actions.

CVSS severity5.4
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in BTCPay Server before 1.8.3 allows remote authenticated users to execute JavaScript in another user's browser. Affected Razor views place user-controlled interpolation syntax inside Vue-parsed elements while the content security policy permits unsafe evaluation. Exploitation requires crafted content and another user to load an affected view, exposing that user's session-scoped data or actions.

The record

CVE
CVE-2023-1270
Published
Mar 8, 2023
Updated
Aug 2, 2024
Vendor
BTCPay Server
Product
BTCPay Server
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

BTCPay Server · BTCPay Serverversion=unspecified <1.8.3

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.1huntr.devCVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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