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Fencer Vulns
medium 6.1

CVE-2023-39683 json

Cross Site Scripting (XSS) vulnerability in EasyEmail v.4.12.2 and before allows a local attacker to execute arbitrary code via the user in…

published 2024-02-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43384

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Cross Site Scripting (XSS) vulnerability in EasyEmail v.4.12.2 and before allows a local attacker to execute arbitrary code via the user input parameter(s). NOTE: Researcher claims issue is present in all versions prior and later than tested version.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • medium.com https://medium.com/%40vificatem/cve-2023-39683-dom-xss-on-json-source-code-panel-in-zalify-easy-email-3fa08f3e0d49 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.