Critical severity9.8NVD Advisory· Published Feb 1, 2021· Updated Jun 17, 2026
CVE-2020-26547
CVE-2020-26547
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.
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Affected products
2- Monal/Monaldescription
Patches
Vulnerability mechanics
References
2- github.com/anurodhp/Monal/commits/developnvdThird Party Advisory
- monal.im/blog/cve-2020-26547/nvdVendor Advisory
News mentions
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