by Kastro
Paper/Archive/CVE-2020-26547

CVE-2020-26547

mitre — Monal before 4.9 does not implement proper sender verification on MAM and Message Carbon (XEP-0280) results.

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 46.3.463 × 209.3No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

Monal before 4.9 does not implement proper sender verification on MAM and Message Carbon (XEP-0280) results. This allows a remote attacker (able to send stanzas to a victim) to inject arbitrary messages into the local history, with full control over the sender and receiver displayed to the victim.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgithub.com/anurodhp/Monal/commits/developrefmonal.im/blog/cve-2020-26547