CVE-2023-30963

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2023-07-11. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
—
EPSS
30.6%
KEV
Not listed

Published

July 10, 2023

Last Modified

November 21, 2024

References (2)

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-22 23:09 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2023-30963?
CVE-2023-30963 is a medium vulnerability published on July 10, 2023. 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…
When was CVE-2023-30963 disclosed?
CVE-2023-30963 was first published in the National Vulnerability Database on July 10, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-30963 actively exploited?
CVE-2023-30963 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-30963?
CVE-2023-30963 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2023-30963?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-30963, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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