CVE-2026-73330

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

Score 6.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. a secondary CVSS source baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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(medium)
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
47%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 26, 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 17× in last 7d / 78× 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 105 total refreshes for this CVE.

  1. 2026-09-19 04:28 UTCEG score recompute
  2. 2026-09-19 04:28 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 04:40 UTCEG score recompute
  5. 2026-09-18 04:40 UTCGHSA enrichment
  6. 2026-09-17 04:52 UTCEG score recompute
  7. 2026-09-17 04:52 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 05:04 UTCGHSA enrichment
  11. 2026-09-15 04:20 UTCEG score recompute
  12. 2026-09-15 04:20 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-14 04:18 UTCEG score recompute
  15. 2026-09-14 04:18 UTCGHSA enrichment
  16. 2026-09-13 04:30 UTCEG score recompute
  17. 2026-09-13 04:30 UTCGHSA enrichment
  18. 2026-09-12 15:02 UTCEPSS rescore
  19. 2026-09-12 04:42 UTCEG score recompute
  20. 2026-09-12 04:42 UTCGHSA enrichment
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-11 04:52 UTCEG score recompute
  23. 2026-09-11 04:52 UTCGHSA enrichment
  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-10 05:04 UTCGHSA enrichment
Show 75 more
  1. 2026-09-09 05:14 UTCEG score recompute
  2. 2026-09-09 05:14 UTCGHSA enrichment
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-08 01:11 UTCEG score recompute
  5. 2026-09-08 01:11 UTCGHSA enrichment
  6. 2026-09-07 01:23 UTCEG score recompute
  7. 2026-09-07 01:23 UTCGHSA enrichment
  8. 2026-09-06 13:48 UTCEPSS rescore
  9. 2026-09-06 01:23 UTCEG score recompute
  10. 2026-09-06 01:23 UTCGHSA enrichment
  11. 2026-09-05 01:25 UTCEG score recompute
  12. 2026-09-05 01:25 UTCGHSA enrichment
  13. 2026-09-04 05:07 UTCEPSS rescore
  14. 2026-09-04 01:27 UTCGHSA enrichment
  15. 2026-09-02 23:29 UTCEG score recompute
  16. 2026-09-02 23:29 UTCGHSA enrichment
  17. 2026-09-02 14:12 UTCEPSS rescore
  18. 2026-09-01 13:54 UTCEPSS rescore
  19. 2026-09-01 11:40 UTCEG score recompute
  20. 2026-09-01 11:40 UTCGHSA enrichment
  21. 2026-09-01 04:40 UTCEPSS rescore
  22. 2026-09-01 04:40 UTCEPSS rescore
  23. 2026-08-31 09:52 UTCEG score recompute
  24. 2026-08-31 09:52 UTCGHSA enrichment
  25. 2026-08-30 19:18 UTCEPSS rescore
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 08:24 UTCEG score recompute
  28. 2026-08-30 08:24 UTCGHSA enrichment
  29. 2026-08-30 01:22 UTCEPSS rescore
  30. 2026-08-29 08:34 UTCEG score recompute
  31. 2026-08-29 08:34 UTCGHSA enrichment
  32. 2026-08-28 21:42 UTCEPSS rescore
  33. 2026-08-27 19:36 UTCEG score recompute
  34. 2026-08-27 19:36 UTCGHSA enrichment
  35. 2026-08-27 14:25 UTCEPSS rescore
  36. 2026-08-26 17:17 UTCEG score recompute
  37. 2026-08-26 17:17 UTCGHSA enrichment
  38. 2026-08-26 14:47 UTCEPSS rescore
  39. 2026-08-25 17:28 UTCEG score recompute
  40. 2026-08-25 17:28 UTCGHSA enrichment
  41. 2026-08-25 13:49 UTCEPSS rescore
  42. 2026-08-24 17:37 UTCEG score recompute
  43. 2026-08-24 17:37 UTCGHSA enrichment
  44. 2026-08-23 17:49 UTCEG score recompute
  45. 2026-08-23 17:49 UTCGHSA enrichment
  46. 2026-08-23 00:19 UTCEPSS rescore
  47. 2026-08-22 18:01 UTCEG score recompute
  48. 2026-08-22 18:01 UTCGHSA enrichment
  49. 2026-08-21 23:49 UTCEPSS rescore
  50. 2026-08-21 18:13 UTCEG score recompute
  51. 2026-08-21 18:13 UTCGHSA enrichment
  52. 2026-08-20 22:56 UTCEPSS rescore
  53. 2026-08-20 18:25 UTCGHSA enrichment
  54. 2026-08-19 18:36 UTCEG score recompute
  55. 2026-08-19 18:36 UTCGHSA enrichment
  56. 2026-08-19 17:04 UTCEPSS rescore
  57. 2026-08-18 17:19 UTCEG score recompute
  58. 2026-08-18 17:19 UTCGHSA enrichment
  59. 2026-08-18 13:49 UTCEPSS rescore
  60. 2026-08-18 13:49 UTCEPSS rescore
  61. 2026-08-17 16:33 UTCEG score recompute
  62. 2026-08-17 16:33 UTCGHSA enrichment
  63. 2026-08-17 13:47 UTCEPSS rescore
  64. 2026-08-16 16:45 UTCEG score recompute
  65. 2026-08-16 16:45 UTCGHSA enrichment
  66. 2026-08-16 14:56 UTCEPSS rescore
  67. 2026-08-16 14:56 UTCEPSS rescore
  68. 2026-08-16 02:15 UTCEPSS rescore
  69. 2026-08-15 16:57 UTCEG score recompute
  70. 2026-08-15 16:57 UTCGHSA enrichment
  71. 2026-08-15 01:31 UTCEPSS rescore
  72. 2026-08-14 17:09 UTCEG score recompute
  73. 2026-08-14 17:09 UTCGHSA enrichment
  74. 2026-08-13 22:00 UTCEPSS rescore
  75. 2026-08-13 20:08 UTCEG score recompute

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 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73330 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 53.2% of all scored CVEs.
What is the CVSS score of CVE-2026-73330?
CVE-2026-73330 has a CVSS v3 base score of 6.6 (NVD).
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

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