CVE-2020-26547
CRITICAL
9.8
CVSS Score
Published: February 1, 2021 at 01:02 AM UTC
Updated: June 17, 2026 at 03:08 AM UTC
1 product affected across 1 vendorMonal
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Severity
CRITICAL9.8
Exploit prediction
EPSS 0.6%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/anurodhp/Monal/commits/developCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-345
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