CVE-2026-41661Disclosure

LOWCVSS 6.1 · MEDIUM

Signal is active with 3 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

Admidio is an open-source user management solution. Prior to version 5.0.9, an unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser through a reflected XSS in system/msg_window.php. The endpoint passes user input through htmlspecialchars(), which does not encode square brackets. A subsequent call to Language::prepareTextPlaceholders() converts those brackets into HTML angle brackets, producing executable markup. This issue has been patched in version 5.0.9.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • 3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-05-07: 3Technical Details · 2026-05-07: 205-07
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets4 URLs
Full discourse3 posts
  • CVEarity@CVEarity
    General

    ⚡ New CVE Alert: CVE-2026-41661 📊 Severity: 6.1 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-41661 #CVE-2026-41661 #CVE #Medium #CyberSecurity #InfoSec https://t.co/kxRZYNOMFH

    Post summary

    The tweet merely announces CVE-2026-41661 with its severity rating and provides a link to the NVD entry, without offering any technical, exploit, or mitigation details.

    0000044
    152 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-41661 Admidio is an open-source user management solution. Prior to version 5.0.9, an unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser… https://www.cve.org/CVERecord?id=CVE-2026-41661

    Post summary

    The text announces a client‑side XSS flaw in Admidio versions prior to 5.0.9 that permits arbitrary JavaScript execution by an unauthenticated attacker.

    0000094
    57.4K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-41661 Reflected XSS in Admidio Prior to Version 5.0.9 via Unenc... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-41661 Don't wait vulnerability scanning results: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=2

    Post summary

    CVE-2026-41661 is a reflected XSS vulnerability affecting Admidio versions prior to 5.0.9, as disclosed through a reference to vulmon.com.

    0000030
    4.0K followersView on X

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