CVE-2015-4707

Cross-site scripting (XSS) vulnerability in IPython before 3.2 allows remote attackers to inject arbitrary web script or HTML via vectors involving JSON error messages and the /api/notebooks path.

Published: 2017-09-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4707 is rated Moderate Risk (51.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.76%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-4707

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.89% 1.76% +0.88%
2 2026-01-18 0.81% 0.89% +0.08%
3 2025-03-30 — 0.81% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4707

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-4707

GitHub Security Advisory for CVE-2015-4707

GHSA-66gw-5xpf-gfp5 · Severity: medium · Ecosystem: pip — Improper Neutralization of Input During Web Page Generation in IPython

OS Trackers for CVE-2015-4707

vendor priority summary link
debian not yet assigned CVE-2015-4707 not yet assigned priority: Debian including 1 source packages (ipython), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-4707
ubuntu low CVE-2015-4707 low priority: Ubuntu including 1 source packages (ipython), 20 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 12, ignored 7, released 1. https://ubuntu.com/security/CVE-2015-4707

Affected software / configurations for CVE-2015-4707

Vendor Product Version Raw CPE
ipython ipython < 3.2.0 cpe:2.3:a:ipython:ipython:*:*:*:*:*:*:*:*

References for CVE-2015-4707

cvelogic Threat Intelligence