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Fencer Vulns
medium 5.4

CVE-2023-42327 json

Cross Site Scripting (XSS) vulnerability in Netgate pfSense v.2.7.0 allows a remote attacker to gain privileges via a crafted URL to the ge…

published 2023-11-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-46780

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
55.4%
EPSS 55.4% chance of exploitation in 30 days, percentile 99%
public exploits
0
none known

Summary

Cross Site Scripting (XSS) vulnerability in Netgate pfSense v.2.7.0 allows a remote attacker to gain privileges via a crafted URL to the getserviceproviders.php page.

Exploit prediction

55.36% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • docs.netgate.com https://docs.netgate.com/downloads/pfSense-SA-23_08.webgui.asc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/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.