Stored XSS in Foundry Slate Query Dropdown menu

published 2023-07-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-35301

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits: 0; none known

A security defect was discovered in Foundry Frontend which enabled users to perform Stored XSS attacks in Slate if Foundry's CSP were to be bypassed. This defect was resolved with the release of Foundry Frontend 6.229.0. The service was rolled out to all affected Foundry instances. No further intervention is required.

Patch / fix

fixed in 1

Palantir com.palantir.foundry:foundry-frontend 6.229.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-10-21)

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

Palantir com.palantir.foundry:foundry-frontend

Classification

Weakness

CWE-82 Improper Neutralization of Script in Attributes of IMG Tags in a Web Page
CWE-79 Improper Neutralization of Input During Web Page Generation

References

palantir.safebase.us /?tcuUid=3c6b63b7-fb67-4202-a94a-9c83515efb8a
vendor-advisory

Sources

CVE List CVE-2023-30963
NVD CVE-2023-30963

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary