CVE-2020-15086

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 3.7%, top 12% 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: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.8Exploit: NoneExposed: 0

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

In TYPO3 installations with the "mediace" extension from version 7.6.2 and before version 7.6.5, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. The allows to inject arbitrary data having a valid cryptographic message authentication code and can lead to remote code execution. To successfully exploit this vulnerability, an attacker must have access to at least one Extbase plugin or module action in a TYPO3 installation. This is fixed in version 7.6.5 of the "mediace" extension for TYPO3.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
84.4%
KEV
Not listed

Published

July 29, 2020

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated May 27, 2026
Patch available. Sources: github_commit, github_pr, github.
github Patch Available

Sensitive Information Disclosure in extension "Media Content Element" (mediace) · Advisory · FriendsOfTYPO3/mediace · GitHub

https://github.com/FriendsOfTYPO3/mediace/security/advisories/GHSA-4h44-w6fm-548g
github_pr Patch Available

[SECURITY] Restrict file validation hash generation

Patch available: FriendsOfTYPO3/mediace 7.6.5 (PR #31 merged 2020-07-28)

https://github.com/FriendsOfTYPO3/mediace/pull/31
github_commit Patch Available

commit fa29ffd3e8b2 (FriendsOfTYPO3/mediace)

Patch available: FriendsOfTYPO3/mediace 7.6.5 (contains commit fa29ffd3e8b2)

https://github.com/FriendsOfTYPO3/mediace/commit/fa29ffd3e8b275782a8600d2406e1b1e5e16ae75

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
friendsoftypo3/mediace7.6.3, 7.6.47.6.5—

Weakness Classification(4)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 40× 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. 2026-07-18 10:02 UTCEPSS rescore
  2. 2026-07-16 16:59 UTCEPSS rescore
  3. 2026-07-16 16:59 UTCEPSS rescore
  4. 2026-07-15 16:55 UTCEPSS rescore
  5. 2026-07-13 22:27 UTCEPSS rescore
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  9. 2026-07-11 08:24 UTCEPSS rescore
  10. 2026-07-09 19:06 UTCEPSS rescore
  11. 2026-07-08 15:11 UTCEPSS rescore
  12. 2026-07-07 13:43 UTCEPSS rescore
  13. 2026-07-06 16:25 UTCEPSS rescore
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  15. 2026-07-06 02:20 UTCEPSS rescore
  16. 2026-07-05 02:27 UTCEPSS rescore
  17. 2026-07-04 06:28 UTCEPSS rescore
  18. 2026-07-01 15:03 UTCEPSS rescore
  19. 2026-07-01 15:03 UTCEPSS rescore
  20. 2026-07-01 14:16 UTCOSV refresh
  21. 2026-06-30 23:20 UTCEPSS rescore
  22. 2026-06-30 23:20 UTCEPSS rescore
  23. 2026-06-29 14:04 UTCEPSS rescore
  24. 2026-06-29 14:04 UTCEPSS rescore
  25. 2026-06-28 14:05 UTCEPSS rescore
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  1. 2026-06-28 04:54 UTCEPSS rescore
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  3. 2026-06-27 03:06 UTCEPSS rescore
  4. 2026-06-25 13:47 UTCEPSS rescore
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  6. 2026-06-24 14:03 UTCEPSS rescore
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  8. 2026-06-22 14:23 UTCEPSS rescore
  9. 2026-06-22 14:23 UTCEPSS rescore
  10. 2026-06-21 14:54 UTCEPSS rescore
  11. 2026-06-21 14:54 UTCEPSS rescore
  12. 2026-06-21 01:57 UTCEPSS rescore
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  14. 2026-06-19 19:23 UTCEPSS rescore
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  16. 2026-06-18 17:50 UTCEPSS rescore
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  18. 2026-06-17 17:50 UTCEPSS rescore
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  20. 2026-06-16 17:50 UTCEPSS rescore
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  22. 2026-06-15 17:46 UTCEPSS rescore
  23. 2026-06-14 23:15 UTCEPSS rescore
  24. 2026-06-14 23:15 UTCEPSS rescore
  25. 2026-06-13 22:58 UTCEPSS rescore
  26. 2026-06-13 22:58 UTCEPSS rescore
  27. 2026-06-13 21:43 UTCOSV refresh
  28. 2026-06-12 23:09 UTCEPSS rescore
  29. 2026-06-11 13:58 UTCEPSS rescore
  30. 2026-06-10 22:16 UTCEPSS rescore
  31. 2026-06-10 22:16 UTCEPSS rescore
  32. 2026-06-10 13:20 UTCEPSS rescore
  33. 2026-06-08 14:15 UTCEPSS rescore
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  35. 2026-06-07 15:23 UTCEPSS rescore
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  37. 2026-06-06 13:45 UTCEPSS rescore
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  40. 2026-06-05 22:45 UTCEPSS rescore
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  42. 2026-06-05 06:08 UTCEPSS rescore
  43. 2026-06-04 13:10 UTCEPSS rescore
  44. 2026-06-04 13:10 UTCEPSS rescore
  45. 2026-06-02 20:11 UTCEPSS rescore
  46. 2026-06-02 20:11 UTCEPSS rescore
  47. 2026-06-01 13:50 UTCEPSS rescore
  48. 2026-05-31 22:29 UTCEPSS rescore
  49. 2026-05-31 22:29 UTCEPSS rescore
  50. 2026-05-31 00:15 UTCEPSS rescore
  51. 2026-05-31 00:14 UTCEPSS rescore
  52. 2026-05-29 13:42 UTCEPSS rescore
  53. 2026-05-29 13:42 UTCEPSS rescore
  54. 2026-05-28 13:43 UTCEPSS rescore
  55. 2026-05-28 13:43 UTCEPSS rescore
  56. 2026-05-27 13:39 UTCEPSS rescore
  57. 2026-05-27 00:42 UTCEG score recompute
  58. 2026-05-26 13:42 UTCEPSS rescore
  59. 2026-05-26 13:42 UTCEPSS rescore
  60. 2026-05-26 07:17 UTCEPSS rescore
  61. 2026-05-26 07:17 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-15086?
CVE-2020-15086 is a critical vulnerability published on July 29, 2020. In TYPO3 installations with the "mediace" extension from version 7.6.2 and before version 7.6.5, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. The allows to inject arbitrary data having a valid cryptographic message authentication code…
When was CVE-2020-15086 disclosed?
CVE-2020-15086 was first published in the National Vulnerability Database on July 29, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-15086 actively exploited?
CVE-2020-15086 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-15086?
CVE-2020-15086 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-15086?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15086, 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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