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Fencer Intel
medium 4.8

CVE-2021-3109 json

The custom menu item options page in SolarWinds Orion Platform before 2020.2.5 allows Reverse Tabnabbing in the context of an administrator…

published 5y ago modified 4mo ago also EUVD-2021-26461

cvss
4.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

The custom menu item options page in SolarWinds Orion Platform before 2020.2.5 allows Reverse Tabnabbing in the context of an administrator account.

Patch / fix

  • solarwinds orion_platform 2020.2.5

Is CVE-2021-3109 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

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.9 AV:N/AC:M/Au:S/C:P/I:P/A:N

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.