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Fencer Intel
medium 6.1

CVE-2021-43574 json

WebAdmin Control Panel in Atmail 6.5.0 (a version released in 2012) allows XSS via the format parameter to the default URI.

published 4y ago modified 4mo ago also EUVD-2021-30492

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known, plus a Nuclei check

Summary

WebAdmin Control Panel in Atmail 6.5.0 (a version released in 2012) allows XSS via the format parameter to the default URI. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2y ago

Exploit prediction

2.46% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

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.