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Fencer Intel
medium 6.1

CVE-2018-19286 json

The server in mubu note 2018-11-11 has XSS by configuring an account with a crafted name value (along with an arbitrary username value), an…

published 2018-11-15 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10989

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

The server in mubu note 2018-11-11 has XSS by configuring an account with a crafted name value (along with an arbitrary username value), and then creating and sharing a note.

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/CCCCCrash/POCs/blob/master/Web/mubu/xss.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel 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.