VulnSocial

CVE-2026-71294Disclosure

LOWCVSS 7.6 · HIGH

Exploit discussion active in current signal (2 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a POST parameter obtained via (trim-only sanitization) is passed to with no restriction, reachable by any member with write access to comments (the default setting in plugins/comments/comments.setup.php).

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1.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 5 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • General: 1 classified signal
  • Peaked 1d ago at 3 mentions (2026-08-05); latest day: 2
  • 5 total mentions across 2 days

Deep dive

Activity timeline5 mentions / 2d
01223Mentions · 2026-08-05: 3Mentions · 2026-09-13: 2PoC Mentioned / Linked · 2026-09-13: 1Technical Details · 2026-08-05: 2Technical Details · 2026-09-13: 208-0509-13
Signal classification3 categories
Disclosure
360.0%
General
120.0%
PoC
120.0%
Referenced assets5 URLs
Classification over time
DateTotalLabels
2026-08-053
Disclosure2General1
2026-09-132
Disclosure1PoC1
Full discourse5 posts
  • Rıdvan Yağlı@ridvanyagli
    PoC

    🚨 Cotonti CMS'te yüksek önem dereceli PHP Object Injection açığı Cotonti CMS'in CommentsWidget bileşeninde, saldırgan tarafından kontrol edilen verilerin unserialize() ile işlenmesinden kaynaklanan CVE-2026-71294 güvenlik açığı keşfedildi. Açığın istismarıyla PHP Object Injection gerçekleştirilebiliyor. Uygun bir POP gadget chain kullanılması durumunda saldırının uzaktan kod çalıştırmaya (RCE) kadar ilerleyebileceği belirtiliyor. Açığı gösteren PoC yayınlandı: https://github.com/HarshRajSinghania/cotonti-commentswidget-poc

    Post summary

    High‑critical PHP Object Injection vulnerability (CVE-2026-71294) discovered in Cotonti CMS’s CommentsWidget component, with a publicly released PoC demonstrating potential RCE via a POP gadget chain.

    01030454
    2.5K followersView on X
  • cybrmonk@cybr_monk
    Disclosure

    CVE-2026-71294 Lets Attackers Run Arbitrary PHP Code Through Cotonti CMS Comments https://cybrmonk.com/blog/cve-2026-71294-lets-attackers-run-arbitrary-php-code-through-cotonti-cms-comments #cybersecurity #threatintelligence https://t.co/78tUjxUqk8

    Post summary

    The tweet announces a newly disclosed vulnerability (CVE‑2026‑71294) that enables arbitrary PHP code execution via Cotonti CMS comments, but provides no PoC, exploit code, or mitigation details.

    0000040
    47 followersView on X
  • PJ@Npj8448
    General

    Ransomware attacks are surging, with Dark Project and Everest targeting organizations worldwide. Multiple CVEs reported, including CVE-2026-71294 and CVE-2026-71293. Prioritize cybersecurity and backups to stay safe #CyberSecurity #Ransomware #ThreatIntel https://pranithjain.qzz.io/threatintel/social/firehose

    Post summary

    The tweet lists two CVE identifiers in the context of ransomware but provides no technical, exploit, or mitigation details.

    0000054
    54 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-71294 Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/Create… https://www.cve.org/CVERecord?id=CVE-2026-71294 ----- Traducción: CVE-2026-71294 El … http://infoflow.cloud`

    Post summary

    The post announces CVE‑2026‑71294, describing how Cotonti CMS’s Comments plugin deserializes user data with no class restrictions, but it offers no PoC, exploit, patch, or evidence of active use.

    0000030
    97 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-71294 Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/Create… https://www.cve.org/CVERecord?id=CVE-2026-71294

    Post summary

    This post announces CVE-2026-71294, describing an unrestricted PHP object deserialization flaw in Cotonti CMS’s Comments plugin that could allow arbitrary code execution, with no public PoC, exploit, or patch referenced.

    000001.2K
    57.9K followersView on X

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