CVE-2025-9823: Mautic vulnerable to reflected XSS in lead:addLeadTags - Quick Add

medium Affects mautic/core. Feed 2026.10.29.4, updated 2026-10-29; published 2025-09-03.

Mautic vulnerable to reflected XSS in lead:addLeadTags - Quick Add

Package: mautic/core Composer
Affected versions: >=4.4.0 and <4.4.17 or >=5.0.0-alpha and <5.2.8 or >=6.0.0-alpha and <6.0.5
Fixed in: 4.4.17, 5.2.8, 6.0.5
Severity: medium
Exploitation: not on CISA KEV · EPSS 0% (24.6th percentile)
Published: 2025-09-03
Source: osv.dev

References

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