CVE-2026-78337

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this week
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

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

Unrestricted Upload of File with Dangerous Type in the company logo upload in Roskus Prospero Flow CRM before 5.15.13 allows an authenticated user holding the create company and update company permissions to execute arbitrary JavaScript in the application origin via an SVG document containing an embedded script element.

CVSS v3
4.8
EG Score
4.8(medium)
EG Risk
26(Track)
EG Risk 26/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity48% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 24, 2026

Advisory Details (2)

Auto-updated Aug 24, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

CVE-2026-78337 · Unrestricted upload of file with dangerous type in Prospero Flow CRM allows stored cross-site scripting via SVG | Vulnerabilities published by Secur0

https://secur0.com/en/cna/cve-list/cve-2026-78337-unrestricted-upload-company-logo-svg-xss
github_commit

commit aaa4fc76bf03 (Roskus/prospero-flow-crm)

Fix landed in Roskus/prospero-flow-crm commit aaa4fc76bf03 — awaiting tagged release

https://github.com/Roskus/prospero-flow-crm/commit/aaa4fc76bf039d5011884b86b8f29ddd50d17b17

Vendor Advisories for CVE-2026-78337(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 15× 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.

  1. 2026-08-29 00:28 UTCEG score recompute
  2. 2026-08-29 00:27 UTCGHSA enrichment
  3. 2026-08-28 21:42 UTCEPSS rescore
  4. 2026-08-27 18:14 UTCEG score recompute
  5. 2026-08-27 18:14 UTCGHSA enrichment
  6. 2026-08-27 14:25 UTCEPSS rescore
  7. 2026-08-26 16:13 UTCEG score recompute
  8. 2026-08-26 16:13 UTCGHSA enrichment
  9. 2026-08-26 14:47 UTCEPSS rescore
  10. 2026-08-25 14:14 UTCEG score recompute
  11. 2026-08-25 14:14 UTCGHSA enrichment
  12. 2026-08-25 13:49 UTCEPSS rescore
  13. 2026-08-24 11:23 UTCEG score recompute
  14. 2026-08-24 11:11 UTCEG score recompute
  15. 2026-08-24 11:11 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78337?
CVE-2026-78337 is a medium vulnerability published on August 24, 2026. Unrestricted Upload of File with Dangerous Type in the company logo upload in Roskus Prospero Flow CRM before 5.15.13 allows an authenticated user holding the create company and update company permissions to execute arbitrary JavaScript in the application origin via an SVG document containing an…
When was CVE-2026-78337 disclosed?
CVE-2026-78337 was first published in the National Vulnerability Database on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78337 actively exploited?
CVE-2026-78337 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.0% of all scored CVEs.
What is the CVSS score of CVE-2026-78337?
CVE-2026-78337 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-78337?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78337, 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.

Dependency Blast Radius

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