CVE-2026-82921

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-09-01. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Elevated riskExposed: 0

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

A weakness has been identified in ShopEx ECShop up to 2.5.1. This affects the function check_img_type of the file admin/pack.php. Executing a manipulation of the argument pack_img can lead to unrestricted upload. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

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
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 1, 2026

References (5)

Vendor Advisories for CVE-2026-82921(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 83× 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. 2026-09-21 11:46 UTCGHSA enrichment
  2. 2026-09-20 23:21 UTCEG score recompute
  3. 2026-09-20 23:21 UTCGHSA enrichment
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-20 10:55 UTCGHSA enrichment
  6. 2026-09-19 22:29 UTCEG score recompute
  7. 2026-09-19 22:29 UTCGHSA enrichment
  8. 2026-09-19 10:03 UTCGHSA enrichment
  9. 2026-09-18 21:38 UTCEG score recompute
  10. 2026-09-18 21:38 UTCGHSA enrichment
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 09:13 UTCGHSA enrichment
  13. 2026-09-17 20:47 UTCEG score recompute
  14. 2026-09-17 20:47 UTCGHSA enrichment
  15. 2026-09-17 07:44 UTCGHSA enrichment
  16. 2026-09-16 19:18 UTCEG score recompute
  17. 2026-09-16 19:18 UTCGHSA enrichment
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 06:52 UTCEG score recompute
  20. 2026-09-16 06:52 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 18:27 UTCGHSA enrichment
  23. 2026-09-15 05:36 UTCEG score recompute
  24. 2026-09-15 05:36 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 58 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 16:11 UTCGHSA enrichment
  3. 2026-09-14 03:46 UTCEG score recompute
  4. 2026-09-14 03:46 UTCGHSA enrichment
  5. 2026-09-13 15:20 UTCGHSA enrichment
  6. 2026-09-13 02:55 UTCEG score recompute
  7. 2026-09-13 02:55 UTCGHSA enrichment
  8. 2026-09-12 14:29 UTCGHSA enrichment
  9. 2026-09-12 02:04 UTCEG score recompute
  10. 2026-09-12 02:04 UTCGHSA enrichment
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 13:38 UTCEG score recompute
  14. 2026-09-11 13:38 UTCGHSA enrichment
  15. 2026-09-11 01:12 UTCGHSA enrichment
  16. 2026-09-10 12:46 UTCEG score recompute
  17. 2026-09-10 12:46 UTCGHSA enrichment
  18. 2026-09-10 00:20 UTCGHSA enrichment
  19. 2026-09-09 11:54 UTCGHSA enrichment
  20. 2026-09-08 23:28 UTCEG score recompute
  21. 2026-09-08 23:28 UTCGHSA enrichment
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 03:22 UTCEG score recompute
  24. 2026-09-08 03:22 UTCGHSA enrichment
  25. 2026-09-07 14:56 UTCGHSA enrichment
  26. 2026-09-07 01:33 UTCEG score recompute
  27. 2026-09-07 01:33 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 13:05 UTCGHSA enrichment
  30. 2026-09-06 00:40 UTCEG score recompute
  31. 2026-09-06 00:40 UTCGHSA enrichment
  32. 2026-09-05 15:31 UTCEPSS rescore
  33. 2026-09-05 12:13 UTCGHSA enrichment
  34. 2026-09-04 23:45 UTCEG score recompute
  35. 2026-09-04 23:45 UTCGHSA enrichment
  36. 2026-09-04 11:20 UTCEG score recompute
  37. 2026-09-04 11:20 UTCGHSA enrichment
  38. 2026-09-04 05:07 UTCEPSS rescore
  39. 2026-09-03 22:54 UTCGHSA enrichment
  40. 2026-09-03 10:25 UTCGHSA enrichment
  41. 2026-09-02 21:54 UTCEG score recompute
  42. 2026-09-02 21:54 UTCGHSA enrichment
  43. 2026-09-02 14:12 UTCEPSS rescore
  44. 2026-09-02 09:26 UTCGHSA enrichment
  45. 2026-09-01 21:00 UTCGHSA enrichment
  46. 2026-09-01 16:28 UTCEG score recompute
  47. 2026-09-01 16:28 UTCGHSA enrichment
  48. 2026-09-01 16:23 UTCNVD updateCVSS v4 → 5.5
  49. 2026-09-01 16:10 UTCEG score recompute
  50. 2026-09-01 16:10 UTCGHSA enrichment
  51. 2026-09-01 16:08 UTCMITRE cvelistV5CVSS v4 → 6.9
  52. 2026-09-01 13:54 UTCEPSS rescore
  53. 2026-09-01 10:51 UTCEG score recompute
  54. 2026-09-01 10:50 UTCGHSA enrichment
  55. 2026-08-31 22:21 UTCEG score recompute
  56. 2026-08-31 22:21 UTCNVD updateCVSS v4 → 5.5
  57. 2026-08-31 21:25 UTCEG score recompute
  58. 2026-08-31 21:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82921?
CVE-2026-82921 is a high vulnerability published on August 31, 2026. A weakness has been identified in ShopEx ECShop up to 2.5.1. This affects the function checkimgtype of the file admin/pack.php. Executing a manipulation of the argument pack_img can lead to unrestricted upload. It is possible to launch the attack remotely. The exploit has been made available to the…
When was CVE-2026-82921 disclosed?
CVE-2026-82921 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82921 actively exploited?
CVE-2026-82921 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 79.5% of all scored CVEs.
What is the CVSS score of CVE-2026-82921?
CVE-2026-82921 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-82921?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82921, 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-2026-82921

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