CVE-2026-73330

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. the CNA's CVSS baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.6Exploit: None knownExposed: 0

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

CamaleonCMS 2.9.1 contains a server-side template injection vulnerability that allows authenticated administrators to execute arbitrary commands by embedding ERB tags in the email parameter of the test_email settings action, which are evaluated when an SMTP rejection reflects the recipient address back in the exception message rendered as an inline ERB template. Attackers can submit a crafted email parameter containing ERB expressions through the admin settings test_email endpoint, causing the Rails inline template renderer to evaluate attacker-controlled Ruby code and achieve arbitrary command execution as the Rails process user.

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity66% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 14, 2026

Advisory Details (3)

Auto-updated Aug 12, 2026
No patch confirmed yet.
generic

CamaleonCMS 2.9.1 Server-Side Template Injection via test_email Action | Advisories | VulnCheck

https://www.vulncheck.com/advisories/camaleoncms-server-side-template-injection-via-test-email-action
generic

From Easy HTB Machine to finding 8 zero-days | Enrik Mustafa

https://enrik-m.github.io/posts/Camaleon-CMS-Vulnerabilties/#44-stored-xss-via-draft-post-title
generic

GitHub - owen2345/camaleon-cms: Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails · GitHub

https://github.com/owen2345/camaleon-cms

Vendor Advisories for CVE-2026-73330(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 24× in last 7d / 28× 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. 2026-08-20 18:25 UTCGHSA enrichment
  2. 2026-08-19 18:36 UTCEG score recompute
  3. 2026-08-19 18:36 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-18 17:19 UTCEG score recompute
  6. 2026-08-18 17:19 UTCGHSA enrichment
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-17 16:33 UTCEG score recompute
  10. 2026-08-17 16:33 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-16 16:45 UTCEG score recompute
  13. 2026-08-16 16:45 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 02:15 UTCEPSS rescore
  17. 2026-08-15 16:57 UTCEG score recompute
  18. 2026-08-15 16:57 UTCGHSA enrichment
  19. 2026-08-15 01:31 UTCEPSS rescore
  20. 2026-08-14 17:09 UTCEG score recompute
  21. 2026-08-14 17:09 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 20:08 UTCEG score recompute
  24. 2026-08-13 20:08 UTCGHSA enrichment
  25. 2026-08-12 20:20 UTCEG score recompute
Show 3 more
  1. 2026-08-12 20:06 UTCEG score recompute
  2. 2026-08-12 19:21 UTCEG score recompute
  3. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73330?
CVE-2026-73330 is a medium vulnerability published on August 12, 2026. CamaleonCMS 2.9.1 contains a server-side template injection vulnerability that allows authenticated administrators to execute arbitrary commands by embedding ERB tags in the email parameter of the testemail settings action, which are evaluated when an SMTP rejection reflects the recipient address…
When was CVE-2026-73330 disclosed?
CVE-2026-73330 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73330 actively exploited?
CVE-2026-73330 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.5% of all scored CVEs.
What is the CVSS score of CVE-2026-73330?
CVE-2026-73330 has a CVSS v4.0 base score of 6.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-73330?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73330, 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

Explore the affected products and dependency analysis for CVE-2026-73330

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