VulnSocial

CVE-2026-18430Disclosure

LOWCVSS 7.2 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

HumHub 1.18.4 contains a stored cross-site scripting vulnerability in the comment-deletion notification flow. A Space administrator can delete another user's comment, choose to notify the original author, and place HTML/JavaScript in the deletion reason.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-16: 109-16
Signal classification1 categories
Disclosure
1100.0%
Referenced assets2 URLs
Full discourse1 post
  • Fluid Attacks@fluidattacks
    Disclosure

    🚨 New zero-day in HumHub | Detected by our AI SAST scanner and disclosed by Miguel Gómez. As a #CNA, we assigned the ID CVE-2026-18430. Details: 🔗https://fluidattacks.com/advisories/personajes. We have announced 272 #CVEs to this date: 🔗 https://fluidattacks.com/advisories/. https://t.co/1BaKWt8WDO

    Post summary

    The text announces a new zero-day vulnerability in HumHub, assigned CVE-2026-18430, with details linked to an advisory page. It serves as a disclosure post without mentions of exploits, patches, or active exploitation.

    0000093
    900 followersView on X

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