CVE-2023-46308Network attack vector

Object prototype modification via unchecked property paths

Published Jan 3, 2024 · Updated Dec 24, 2025

Prototype pollution in Plotly plotly.js before 2.25.2 allows remote attackers to alter shared object prototypes through plot API calls. The expandObjectPaths and nestedProperty helpers accept dotted property paths containing proto and follow them into Object.prototype instead of rejecting internal keys. Any application that passes attacker-controlled data or layout objects to affected plot APIs can inherit attacker-defined properties across subsequently created objects.

CVSS severity9.8
Critical
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Prototype pollution in Plotly plotly.js before 2.25.2 allows remote attackers to alter shared object prototypes through plot API calls. The expandObjectPaths and nestedProperty helpers accept dotted property paths containing proto and follow them into Object.prototype instead of rejecting internal keys. Any application that passes attacker-controlled data or layout objects to affected plot APIs can inherit attacker-defined properties across subsequently created objects.

The record

CVE
CVE-2023-46308
Published
Jan 3, 2024
Updated
Dec 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1321, CAPEC-77
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CAPEC-77Manipulating User-Controlled Variables

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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