CVE-2026-39170

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-06-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

SemCms 5.0 is vulnerable to Cross Site Request Forgery (CSRF) via crafted POST request to /admin/semcms_user.php.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Jun 13, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

SEMCMS <= 5.0 Sensitive Information Disclosure via Hidden Form Fields CVE-2026-39170 · GitHub

https://gist.github.com/ql288470-pixel/41e01787357416458212dbbfd06c6d73

Vendor Advisories for CVE-2026-39170(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 16× 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.

  1. 2026-08-01 14:26 UTCEG score recompute
  2. 2026-08-01 14:26 UTCGHSA enrichment
  3. 2026-08-01 04:16 UTCEPSS rescore
  4. 2026-07-31 13:48 UTCEG score recompute
  5. 2026-07-31 13:48 UTCGHSA enrichment
  6. 2026-07-30 16:28 UTCEPSS rescore
  7. 2026-07-30 11:12 UTCEG score recompute
  8. 2026-07-30 11:12 UTCGHSA enrichment
  9. 2026-07-30 01:30 UTCEPSS rescore
  10. 2026-07-29 10:12 UTCEG score recompute
  11. 2026-07-29 10:12 UTCGHSA enrichment
  12. 2026-07-28 09:33 UTCGHSA enrichment
  13. 2026-07-27 08:11 UTCEG score recompute
  14. 2026-07-27 08:11 UTCGHSA enrichment
  15. 2026-07-26 05:31 UTCEG score recompute
  16. 2026-07-26 05:31 UTCGHSA enrichment
  17. 2026-07-25 14:18 UTCEPSS rescore
  18. 2026-07-25 14:18 UTCEPSS rescore
  19. 2026-07-24 14:17 UTCEPSS rescore
  20. 2026-07-24 14:17 UTCEPSS rescore
  21. 2026-07-23 14:18 UTCEPSS rescore
  22. 2026-07-23 14:18 UTCEPSS rescore
  23. 2026-07-23 03:10 UTCEG score recompute
  24. 2026-07-22 14:08 UTCEPSS rescore
  25. 2026-07-21 15:24 UTCEPSS rescore
Show 68 more
  1. 2026-07-20 17:08 UTCEPSS rescore
  2. 2026-07-19 14:31 UTCEPSS rescore
  3. 2026-07-16 17:03 UTCEPSS rescore
  4. 2026-07-16 04:58 UTCGHSA enrichment
  5. 2026-07-15 16:57 UTCEPSS rescore
  6. 2026-07-15 16:57 UTCEPSS rescore
  7. 2026-07-15 04:02 UTCGHSA enrichment
  8. 2026-07-14 02:11 UTCGHSA enrichment
  9. 2026-07-13 22:30 UTCEPSS rescore
  10. 2026-07-13 01:22 UTCGHSA enrichment
  11. 2026-07-12 05:46 UTCEPSS rescore
  12. 2026-07-11 20:11 UTCGHSA enrichment
  13. 2026-07-10 19:30 UTCGHSA enrichment
  14. 2026-07-09 19:10 UTCEPSS rescore
  15. 2026-07-08 23:28 UTCGHSA enrichment
  16. 2026-07-08 15:15 UTCEPSS rescore
  17. 2026-07-07 22:47 UTCGHSA enrichment
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-05 20:08 UTCGHSA enrichment
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 19:28 UTCGHSA enrichment
  22. 2026-07-03 16:56 UTCGHSA enrichment
  23. 2026-07-02 16:17 UTCGHSA enrichment
  24. 2026-07-01 15:39 UTCGHSA enrichment
  25. 2026-07-01 15:06 UTCEPSS rescore
  26. 2026-06-30 23:22 UTCEPSS rescore
  27. 2026-06-30 15:00 UTCGHSA enrichment
  28. 2026-06-29 14:22 UTCGHSA enrichment
  29. 2026-06-28 14:07 UTCEPSS rescore
  30. 2026-06-28 13:44 UTCGHSA enrichment
  31. 2026-06-28 04:56 UTCEPSS rescore
  32. 2026-06-27 13:07 UTCGHSA enrichment
  33. 2026-06-27 03:08 UTCEPSS rescore
  34. 2026-06-26 12:29 UTCGHSA enrichment
  35. 2026-06-25 13:49 UTCEPSS rescore
  36. 2026-06-25 13:49 UTCEPSS rescore
  37. 2026-06-25 10:32 UTCGHSA enrichment
  38. 2026-06-24 09:53 UTCGHSA enrichment
  39. 2026-06-23 21:33 UTCEPSS rescore
  40. 2026-06-23 09:14 UTCGHSA enrichment
  41. 2026-06-22 14:25 UTCEPSS rescore
  42. 2026-06-22 14:25 UTCEPSS rescore
  43. 2026-06-22 04:35 UTCGHSA enrichment
  44. 2026-06-20 21:20 UTCGHSA enrichment
  45. 2026-06-19 19:25 UTCEPSS rescore
  46. 2026-06-19 19:25 UTCEPSS rescore
  47. 2026-06-19 19:17 UTCGHSA enrichment
  48. 2026-06-18 18:38 UTCGHSA enrichment
  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-18 17:52 UTCEPSS rescore
  51. 2026-06-17 17:53 UTCEPSS rescore
  52. 2026-06-17 17:06 UTCGHSA enrichment
  53. 2026-06-16 16:24 UTCGHSA enrichment
  54. 2026-06-15 17:49 UTCEPSS rescore
  55. 2026-06-15 15:44 UTCGHSA enrichment
  56. 2026-06-14 23:18 UTCEPSS rescore
  57. 2026-06-14 15:06 UTCGHSA enrichment
  58. 2026-06-13 23:00 UTCEPSS rescore
  59. 2026-06-13 14:28 UTCGHSA enrichment
  60. 2026-06-12 23:12 UTCEPSS rescore
  61. 2026-06-12 23:12 UTCEPSS rescore
  62. 2026-06-12 13:50 UTCEG score recompute▲ 6.30
  63. 2026-06-12 13:50 UTCGHSA enrichment
  64. 2026-06-11 14:00 UTCEPSS rescore
  65. 2026-06-10 22:18 UTCEPSS rescore
  66. 2026-06-09 21:17 UTCNVD updateCVSS v3 → 6.3 · severity → MEDIUM
  67. 2026-06-09 19:21 UTCEG score recompute
  68. 2026-06-09 19:21 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-39170?
CVE-2026-39170 is a medium vulnerability published on June 9, 2026. SemCms 5.0 is vulnerable to Cross Site Request Forgery (CSRF) via crafted POST request to /admin/semcms_user.php.
When was CVE-2026-39170 disclosed?
CVE-2026-39170 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39170 actively exploited?
CVE-2026-39170 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 98.7% of all scored CVEs.
What is the CVSS score of CVE-2026-39170?
CVE-2026-39170 has a CVSS v3.1 base score of 6.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-39170?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39170, 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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