Information disclosure in Friendsoftypo3 Mediace

CVE-2020-15086

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.027 (85.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-15086?
CVE-2020-15086 is a critical-severity vulnerability in Friendsoftypo3 Mediace, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-07-29.
How severe is CVE-2020-15086?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-15086 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.