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Fencer Vulns
critical 9.0

CVE-2023-4978 json

Cross-site Scripting (XSS) - DOM in librenms/librenms

published 2023-09-15 3 y ago modified 2026-06-17 4 mo ago also GHSA-qjpw-rg56-jh8v , EUVD-2023-2576

cvss
9.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Cross-site Scripting (XSS) - DOM in GitHub repository librenms/librenms prior to 23.9.0.

Patch / fix

  • packagist librenms/librenms 23.9.0
  • librenms librenms/librenms 23.9.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/cefd9295-2053-4e6e-a130-7e1f845728f4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 9.0 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist librenms/librenms
<23.9.0
23.9.0

Affected products

  • librenms librenms/librenms

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.