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Fencer Vulns
medium 6.1

CVE-2023-34599 json

Multiple Cross-Site Scripting (XSS) vulnerabilities have been identified in Gibbon v25.0.0, which enable attackers to execute arbitrary Jav…

published 2023-06-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-38654

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known, plus a Nuclei check

Summary

Multiple Cross-Site Scripting (XSS) vulnerabilities have been identified in Gibbon v25.0.0, which enable attackers to execute arbitrary Javascript code.

CISA SSVC

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

Exploit prediction

1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Gibbon v25.0.0 - Cross-Site Scripting nuclei detection template
  • github.com https://github.com/maddsec/CVE-2023-34599 referenced PoC, tagged "exploit" by a source, unverified

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

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.