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Fencer Intel
low 3.3

CVE-2020-11499 json

Firmware Analysis and Comparison Tool (FACT) 3 has Stored XSS when updating analysis details via a localhost web request, as demonstrated b…

published 6y ago modified 4mo ago also EUVD-2020-3852

cvss
3.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

Firmware Analysis and Comparison Tool (FACT) 3 has Stored XSS when updating analysis details via a localhost web request, as demonstrated by mishandling of the tags and version fields in helperFunctions/mongo_task_conversion.py.

Patch / fix

Is CVE-2020-11499 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/fkie-cad/FACT_core/pull/376 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/fkie-cad/FACT_core/issues/375 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 3.3 CVSS:3.0/AC:L/AV:L/A:N/C:N/I:L/PR:N/S:U/UI:R
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.0 3.3 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/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.