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Fencer Vulns
medium 5.7

CVE-2023-1149 json

Improper Neutralization of Equivalent Special Elements in btcpayserver/btcpayserver

published 2023-03-02 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23432

cvss
5.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.8.0.

Patch / fix

  • btcpayserver btcpayserver/btcpayserver 1.8.0

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/2e734209-d7b0-4f57-a8be-c65c82208f2f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 5.7 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:H
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

  • btcpayserver btcpayserver/btcpayserver

Classification

Weakness
  • CWE-76 Improper Neutralization of Equivalent Special Elements

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.