CVE-2023-30959Network attack vector

Stored XSS via executable javascript URI links

Published Sep 26, 2023 · Updated Sep 24, 2024

Stored XSS in Palantir Apollo Autopilot before 3.308.0 allows remote authenticated users to inject script through a crafted comment link. The change-request comment renderer creates a navigable link from a user-controlled javascript URI instead of rejecting the executable scheme. Another user must activate the rendered link, after which the injected script executes in that user's browser and can read limited browser-accessible data.

CVSS severity4.1
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Palantir Apollo Autopilot before 3.308.0 allows remote authenticated users to inject script through a crafted comment link. The change-request comment renderer creates a navigable link from a user-controlled javascript URI instead of rejecting the executable scheme. Another user must activate the rendered link, after which the injected script executes in that user's browser and can read limited browser-accessible data.

The record

CVE
CVE-2023-30959
Published
Sep 26, 2023
Updated
Sep 24, 2024
Vendor
Palantir Technologies
Product
com.palantir.apollo:autopilot
Classifications
CWE-84, CWE-79, CAPEC-63, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2024Record 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=* <3.308.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Palantir Technologies · com.palantir.apollo:autopilotversion=* <3.308.0

Published CVSS scores

5.4National Institute of Standards and TechnologyCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.1Palantir TechnologiesCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/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-84Improper Neutralization of Encoded URI Schemes in a Web Page
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1204.001Malicious Link

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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