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Fencer Vulns
low 3.7

CVE-2020-4336 json

IBM WebSphere eXtreme Scale 8.6.1 stores sensitive information in URL parameters.

published 2021-01-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25583

cvss
3.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

IBM WebSphere eXtreme Scale 8.6.1 stores sensitive information in URL parameters. This may lead to information disclosure if unauthorized parties have access to the URLs via server logs, referrer header or browser history. IBM X-Force ID: 177932.

Patch / fix

  • ibm websphere_extreme_scale 8.6.1.4

Exploit prediction

0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 3.7 CVSS:3.0/PR:N/AC:H/A:N/S:U/AV:N/C:L/I:N/UI:N/RC:C/E:U/RL:O
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 3.0 3.7 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • IBM WebSphere eXtreme Scale

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.