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Fencer Vulns
medium 4.7

CVE-2021-23347 json

Cross-site Scripting (XSS)

published 2021-03-03 5 y ago modified 2026-07-08 4 mo ago also BIT-argo-cd-2021-23347 , EUVD-2021-1170 , GHSA-qq5v-f4c3-395c , GO-2022-0869

cvss
4.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

The package github.com/argoproj/argo-cd/cmd before 1.7.13, from 1.8.0 and before 1.8.6 are vulnerable to Cross-site Scripting (XSS) the SSO provider connected to Argo CD would have to send back a malicious error message containing JavaScript to the user.

Patch / fix

  • go github.com/argoproj/argo-cd/v2 1.7.13, 1.8.6
  • bitnami argo-cd 1.7.13, 1.8.6
  • go github.com/argoproj/argo-cd 1.7.13, 1.8.6
  • n/a github.com/argoproj/argo-cd/cmd 1.7.13, 1.8.6

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
GitHub 3.1 4.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
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 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
OSV 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
go github.com/argoproj/argo-cd/v2
<1.7.13
>=1.8.0, <1.8.6
1.7.13
1.8.6
bitnami argo-cd
<1.7.13
>=1.8.0, <1.8.6
1.7.13
1.8.6
go github.com/argoproj/argo-cd
<1.7.13
>=1.8.0, <1.8.6
1.7.13
1.8.6

Affected products

  • n/a github.com/argoproj/argo-cd/cmd

Classification

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

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.