VulnSocial

CVE-2026-18526Disclosure

LOWCVSS 7.4 · 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 Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting (XSS) vulnerability in the oEmbed confirmation rendering workflow.

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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 · 2026-09-17: 109-17
Signal classification1 categories
Disclosure
1100.0%
Referenced assets2 URLs
By indicator
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-2026-18526. Details: 🔗https://fluidattacks.com/advisories/greeicy. We have announced 273 #CVEs to this date: 🔗 https://fluidattacks.com/advisories/. https://t.co/au1nZ5O2nU

    Post summary

    Fluid Attacks discloses a new zero-day vulnerability in HumHub (CVE-2026-18526) discovered by their AI SAST scanner and researcher Miguel Gómez, directing readers to their advisory for details.

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    899 followersView on X

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