Security Digest · Vulnerability record
CVE-2023-46308: plotly.js prototype pollution vulnerability
In Plotly plotly.js before 2.25.2, plot API calls have a risk of proto being polluted in expandObjectPaths or nestedProperty.
CVSS 9.8 Critical EPSS 0.9% · p60
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.9%, percentile 60: FIRST’s model estimates a 0.9% chance of exploitation activity in the next 30 days, higher than 60% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
plotly/plotly.js(Composer (PHP)) < 2.25.2, fixed in 2.25.2;plotly.js(npm) < 2.25.2, fixed in 2.25.2. Check your lockfile, including transitive dependencies.
What it is
In Plotly plotly.js before 2.25.2, plot API calls have a risk of proto being polluted in expandObjectPaths or nestedProperty.
From the GitHub advisory
In Plotly plotly.js before 2.25.2, plot API calls have a risk of proto being polluted in expandObjectPaths or nestedProperty.
Weakness type: CWE-1321.
Product: plotly/plotly.js (Composer (PHP)) · Assigned by: mitre · Published: 2024-01-03
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Composer (PHP) | plotly/plotly.js | < 2.25.2 | 2.25.2 |
| npm | plotly.js | < 2.25.2 | 2.25.2 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| n/a | n/a | see vendor advisory |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.94% probability of exploitation activity in the next 30 days; percentile 60.
Timeline
- — CVE record published by mitre
- — GitHub-reviewed advisory GHSA-wjc4-73q6-gv3m published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-wjc4-73q6-gv3m github.com
- CVE.org record CVE-2023-46308 cve.org
- NVD entry CVE-2023-46308 nvd.nist.gov
Other references from the CVE record and advisory
- plotly.com plotly.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
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