CVE-2025-1450Network attack vector

Contributor-level stored XSS via unescaped data-hover attribute

Published Feb 27, 2025 · Updated Apr 8, 2026

Stored DOM-based XSS in Premio Chaty 3.3.5 and earlier allows remote authenticated users to inject scripts through the data-hover parameter. The front-end widget script reads the stored data-hover value and places it into the page DOM without adequate sanitization or output escaping. Contributor-level access is required to store the payload, and the script runs when another user opens the injected page, enabling actions in that user's browser session.

CVSS severity6.4
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored DOM-based XSS in Premio Chaty 3.3.5 and earlier allows remote authenticated users to inject scripts through the data-hover parameter. The front-end widget script reads the stored data-hover value and places it into the page DOM without adequate sanitization or output escaping. Contributor-level access is required to store the payload, and the script runs when another user opens the injected page, enabling actions in that user's browser session.

The record

CVE
CVE-2025-1450
Published
Feb 27, 2025
Updated
Apr 8, 2026
Vendor
Premio
Product
Chaty
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.3.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Premio · Chatyversion=0 <=3.3.5

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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