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TI-2020-11864 Aliases CVE-2020-15086GHSA-4h44-w6fm-548g

Potential Remote Code Execution in TYPO3 with mediace extension

Priority MEDIUM 48CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200 and CWE-502.

Summary

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.

Why it matters now

EPSS 0.03556 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mediace (FriendsOfTYPO3): 7.6.5friendsoftypo3/mediace (Packagist): 7.6.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
FriendsOfTYPO3mediace7.6.2 to before 7.6.57.6.5Patch availableCNA
—friendsoftypo3/mediace (Packagist)7.6.2 to before 7.6.57.6.5Patch availableGHSA-4h44-w6fm-548g
  • mediace VendorFriendsOfTYPO3 Affected 7.6.2 to before 7.6.5 Fixed in 7.6.5 Patch available CNA
  • friendsoftypo3/mediace (Packagist) Vendor— Affected 7.6.2 to before 7.6.5 Fixed in 7.6.5 Patch available GHSA-4h44-w6fm-548g

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:typo3:mediace:*:*:*:*:*:typo3:*:*7.6.2 to before 7.6.5VulnerableTYPO3
  • cpe:2.3:a:typo3:mediace:*:*:*:*:*:typo3:*:* Versions 7.6.2 to before 7.6.5 Vulnerable ·TYPO3

Remediation

  • Fix · CNA mediace (FriendsOfTYPO3) Fixed in 7.6.5
  • Fix · GHSA-4h44-w6fm-548g friendsoftypo3/mediace (Packagist) Fixed in 7.6.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-15086
  2. 2026-10-03 Alias added: GHSA-4h44-w6fm-548g

References

Exploit 1

Patch 2

Advisory 1

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences