CVE-2026-3472
ℹ️ lowSummary
Mattermost versions 10.11.x <= 10.11.18, 11.6.x <= 11.6.3, 11.5.x <= 11.5.6 fail to properly apply markdown image rendering restrictions to AI bot tool result posts, which allows an authenticated attacker to exfiltrate data to an attacker-controlled server via injecting markdown image syntax into tool result content rendered by a victim's client.. Mattermost Advisory ID: MMSA-2026-00619
CVSS Score
3.5
Low
EPSS Score
0.2
Exploit Probability
Published Date
2026-06-26
First Seen: 2026-06-27
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 3.9% of all 338,292 vulnerabilities in our database.
#325,262
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jun 26, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Juho Forsén
SSVC data provided by
CISA
Last Modified
2026-06-29
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
CWE IDs (Weakness Types)