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Fencer Vulns
critical 9.0

CVE-2023-30320 json

Cross Site Scripting (XSS) vulnerability in textMessage field in /src/chatbotapp/chatWindow.java in wliang6 ChatEngine commit fded8e710ad59…

published 2023-07-06 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34743

cvss
9.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

Cross Site Scripting (XSS) vulnerability in textMessage field in /src/chatbotapp/chatWindow.java in wliang6 ChatEngine commit fded8e710ad59f816867ad47d7fc4862f6502f3e, allows attackers to execute arbitrary code.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction

0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/wliang6/ChatEngine/blob/master/src/chatbotapp/chatWindow.java#L71:L81 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

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

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.