CVE-2026-78203

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Ghostwriter before 7.1.2 fails to validate template ownership in the report template swap endpoint, allowing attackers to attach client-scoped templates from other clients to their own reports. Attackers can exploit sequential template primary keys to enumerate and attach foreign templates, then generate reports to disclose template contents including letterhead, boilerplate, and methodology text.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 26, 2026

Advisory Details (5)

Auto-updated Aug 24, 2026
Patch available. Sources: github_commit.
generic

Ghostwriter before 7.1.2 Cross-Client Report Template Disclosure via Unauthorized Template Swap | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ghostwriter-before-cross-client-report-template-disclosure-via-unauthorized-template-swap
generic

oss/Ghostwriter.md at main · geo-chen/oss · GitHub

https://github.com/geo-chen/oss/blob/main/Ghostwriter.md
generic

Ghostwriter/ghostwriter/reporting/views.py at v7.1.1 · GhostManager/Ghostwriter · GitHub

https://github.com/GhostManager/Ghostwriter/blob/v7.1.1/ghostwriter/reporting/views.py#L275-L315
generic

GitHub - GhostManager/Ghostwriter: The SpecterOps project management and reporting engine · GitHub

https://github.com/GhostManager/Ghostwriter
github_commit Patch Available

commit 5b2a4a297e44 (GhostManager/Ghostwriter)

Patch available: GhostManager/Ghostwriter v7.1.2 (contains commit 5b2a4a297e44)

https://github.com/GhostManager/Ghostwriter/commit/5b2a4a297e44c823c16f65b1ba101c742791cd0b

Vendor Advisories for CVE-2026-78203(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 23× in last 7d / 23× 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. 2026-08-28 06:04 UTCGHSA enrichment
  2. 2026-08-27 18:16 UTCEG score recompute
  3. 2026-08-27 18:16 UTCGHSA enrichment
  4. 2026-08-27 14:25 UTCEPSS rescore
  5. 2026-08-27 05:11 UTCGHSA enrichment
  6. 2026-08-26 17:24 UTCEG score recompute
  7. 2026-08-26 17:24 UTCGHSA enrichment
  8. 2026-08-26 16:23 UTCEG score recompute
  9. 2026-08-26 16:23 UTCGHSA enrichment
  10. 2026-08-26 14:47 UTCEPSS rescore
  11. 2026-08-26 12:27 UTCGHSA enrichment
  12. 2026-08-26 00:41 UTCEG score recompute
  13. 2026-08-26 00:41 UTCGHSA enrichment
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-25 12:56 UTCGHSA enrichment
  16. 2026-08-25 01:09 UTCEG score recompute
  17. 2026-08-25 01:09 UTCGHSA enrichment
  18. 2026-08-24 14:18 UTCEPSS rescore
  19. 2026-08-24 13:24 UTCEG score recompute
  20. 2026-08-24 13:24 UTCGHSA enrichment
  21. 2026-08-24 01:38 UTCEG score recompute
  22. 2026-08-24 00:36 UTCEG score recompute
  23. 2026-08-24 00:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78203?
CVE-2026-78203 is a high vulnerability published on August 24, 2026. Ghostwriter before 7.1.2 fails to validate template ownership in the report template swap endpoint, allowing attackers to attach client-scoped templates from other clients to their own reports. Attackers can exploit sequential template primary keys to enumerate and attach foreign templates, then…
When was CVE-2026-78203 disclosed?
CVE-2026-78203 was first published in the National Vulnerability Database on August 24, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78203 actively exploited?
CVE-2026-78203 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 81.2% of all scored CVEs.
What is the CVSS score of CVE-2026-78203?
CVE-2026-78203 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-78203?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78203, 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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