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Fencer Intel
medium 5.4

CVE-2025-51401 json

A stored cross-site scripting (XSS) vulnerability in the chat transfer function of Live Helper Chat v4.60 allows attackers to execute arbit…

published last yr. modified 4mo ago also EUVD-2025-22145

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
1
Exploit-DB

Summary

A stored cross-site scripting (XSS) vulnerability in the chat transfer function of Live Helper Chat v4.60 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the operator name parameter.

Patch / fix

Is CVE-2025-51401 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. Published
  2. First public exploit (EDB-52380)

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-52380 LiveHelperChat 4.61 - Stored Cross Site Scripting (XSS) via the Chat Transfer Function webapps, 2025-07-22
  • dropbox.com https://www.dropbox.com/scl/fi/efzjql0brniphfh5sgrzn/2025-05-09-14-26-26.mp4?rlkey=z4zpec6wsja5xo0ovq0g5g1tt&st=abbp3gtr&dl=0 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/Thewhiteevil/CVE-2025-51401 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA 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 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.