CVE-2020-26547
Last modified
CVE-2020-26547 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Monal | Monal | < 4.9 |
References
- https://github.com/anurodhp/Monal/commits/developThird Party Advisory
- https://monal.im/blog/cve-2020-26547/Vendor Advisory
- https://github.com/anurodhp/Monal/commits/developThird Party Advisory
- https://monal.im/blog/cve-2020-26547/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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