VulnSocial

CVE-2026-61900Disclosure

LOWCVSS 10.0 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch affected systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Joomla Extension - dj-extensions.com - Unauthenticated arbitrary file upload in DJ-jDownloads < 4.1.6 - The Joomla extension JDownloads is vulnerable to an unauthenticated file upload, leading to full RCE.

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2.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-434

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-21); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-21: 1Mentions · 2026-07-23: 1PoC Mentioned / Linked · 2026-07-21: 1Patch / Workaround · 2026-07-23: 1Technical Details · 2026-07-21: 1Technical Details · 2026-07-23: 107-2107-23
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-211
Disclosure1
2026-07-231
Patch1
Full discourse2 posts
  • ExploitGrid@exploitgrid
    Disclosure

    🚨 Critical CVEs: Chrome — 3x Critical UAF bugs (CVE-2026-15901/15900/15899), sandbox escape via crafted HTML. Also: Joomla JDownloads &amp; DJ-Classifieds — unauthenticated file upload → full RCE (CVE-2026-61900/61424). Full list http://exploitgrid.net #CVE #Chrome #Joomla

    Post summary

    The tweet announces three critical Chrome UAF bugs and two Joomla RCE vulnerabilities, noting sandbox escape through crafted HTML and unauthenticated file upload.

    0001071
    27 followersView on X
  • SecAlerts@SecAlertsCo
    Patch

    🗂️ CVSS 10 in DJ-jDownloads &lt; 4.1.6: unauthenticated arbitrary file upload leads to full RCE. No credentials needed. If you run this Joomla extension, update to 4.1.6 now. #Joomla #cybersecurity https://secalerts.co/vulnerability/CVE-2026-61900?utm_campaign=x https://t.co/zZ0Jzm18Cr

    Post summary

    The tweet highlights a CVSS 10 RCE vulnerability in DJ-jDownloads <4.1.6, urging users to upgrade to version 4.1.6 to mitigate the risk.

    00000107
    867 followersView on X

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