CVE-2026-48909

CRITICALPre-NVD 9.59.5—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.8%, top 48% 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: cna:joomla, epss
Trending — 3 sources updated this weekElevated
9.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.5Exploit: NoneExposed: 0

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

SP LMS (com_splms) < 4.1.4 by JoomShaper deserializes user-controlled cookie data without validation, enabling an unauthenticated remote attacker to execute arbitrary code on the server.

CVSS v3
9.5
EG Score
9.5(medium)
EPSS
52.0%
KEV
Not listed

Published

June 20, 2026

Last Modified

June 23, 2026

Advisory Details (1)

Auto-updated Jun 20, 2026
No patch confirmed yet.
generic

Responsive Joomla Templates & Premium Themes Club - JoomShaper

https://www.joomshaper.com/

Vendor Advisories for CVE-2026-48909(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 80× in last 7d / 194× 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 194 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCIs4yev/CVE-2026-48909
    First seen Jun 21, 2026

    CVE-2026-48909 PoC

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48909?
CVE-2026-48909 is a critical vulnerability published on June 20, 2026. SP LMS (com_splms) < 4.1.4 by JoomShaper deserializes user-controlled cookie data without validation, enabling an unauthenticated remote attacker to execute arbitrary code on the server.
When was CVE-2026-48909 disclosed?
CVE-2026-48909 was first published in the National Vulnerability Database on June 20, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48909 actively exploited?
CVE-2026-48909 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48909?
CVE-2026-48909 has a CVSS v4.0 base score of 9.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-48909?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48909, 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-2026-48909

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