VulnSocial

CVE-2026-3666Disclosure

LOWCVSS 8.8 · HIGH

Exploit discussion active in current signal (1 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

The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 2.4.16. This is due to a missing file name/path validation against path traversal sequences. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary files on the server by embedding a crafted path traversal string in a forum post body and then deleting the post.

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1.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 6 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 5 signals
  • Disclosure: 4 classified signals
  • General: 1 classified signal
  • Peaked 2d ago at 3 mentions (2026-04-04); latest day: 1
  • 6 total mentions across 3 days

Deep dive

Activity timeline6 mentions / 3d
01223Mentions · 2026-04-04: 3Mentions · 2026-04-05: 2Mentions · 2026-04-11: 1PoC Mentioned / Linked · 2026-04-11: 1Technical Details · 2026-04-04: 3Technical Details · 2026-04-05: 204-0404-0504-11
Signal classification3 categories
Disclosure
466.7%
General
116.7%
PoC
116.7%
Referenced assets6 URLs
Classification over time
DateTotalLabels
2026-04-043
Disclosure3
2026-04-052
Disclosure1General1
2026-04-111
PoC1
Full discourse6 posts
  • CVEFind.com@CveFindCom
    Disclosure

    [CVE-2026-3666: HIGH] WordPress wpForo Forum plugin versions up to 2.4.16 have a security flaw, enabling attackers to delete files on the server by exploiting path traversal sequences in forum posts.#cve,CVE-2026-3666,#cybersecurity https://cvefind.com/CVE-2026-3666

    Post summary

    CVE‑2026‑3666 is a path‑traversal flaw in the wpForo Forum plugin that permits attackers to delete server files through crafted forum posts. No PoC, exploit code, active exploitation, or patch is mentioned; the post only outlines the technical nature of the vulnerability.

    0101069
    619 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3666 The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 2.4.16. This is due to a missing file name/path val… https://www.cve.org/CVERecord?id=CVE-2026-3666

    Post summary

    The CVE-2026-3666 flaw allows arbitrary file deletion on wpForo Forum plugin versions up to 2.4.16 due to missing file name/path validation.

    00010151
    57.0K followersView on X
  • Atomic Edge@atomicedgeWAF
    PoC

    https://atomicedge.io/cve-proof/cve-2026-3666-wpforo-version-2-4-16-high-vulnerability-proof-of-concept CVE-2026-3666 #WordPress plugin #vulnerability wpforo #cybersecurity #wordpressfirewall #wordpresssecurity #hacking #wpsecurity #atomicedge

    Post summary

    A proof‑of‑concept for CVE‑2026‑3666 affecting WPForo is published, but no active exploitation, patch, or detailed technical information is provided.

    0000047
    6 followersView on X
  • CTIWatch@ctiwatchcloud
    General

    🔍 Today's Top Vulnerabilities 🔴 CVE-2016-20052 | CVSS 9.8 🔴 CVE-2018-25254 | CVSS 9.8 🟠 CVE-2026-3666 | CVSS 8.8 🔗 http://ctiwatch.cloud/vulnerabilities #CVE #Vulnerability #ThreatIntel

    Post summary

    A brief notice lists three CVE identifiers with their CVSS scores and a link to a vulnerability page, offering minimal technical details and no evidence of PoCs, exploits, or patches.

    0000036
    5.6K followersView on X
  • The Hacker Wire@TheHackerWire
    Disclosure

    🟠 CVE-2026-3666 - High The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 2.4.16. This is due to a missing file name/path validation against path tra... https://www.thehackerwire.com/vulnerability/CVE-2026-3666/ https://t.co/E6SFtrkIef

    Post summary

    The post announces CVE-2026-3666, detailing an arbitrary file deletion flaw in wpForo Forum plugin versions up to 2.4.16, with no PoC, exploit code, or patch information disclosed.

    0000041
    161 followersView on X
  • CyberDudeBivash® | Global Cybersecurity Company@cyberbivash
    Disclosure

    🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-3666 - wpForo Forum <= 2.4.16 - Authenticated (Subscriber+) Arbitrary File Deletion via Post Body Intel Report: https://ift.tt/KRC5ePI

    Post summary

    A new authenticated arbitrary file deletion vulnerability (CVE-2026-3666) affecting wpForo Forum versions 2.4.16 and below has been disclosed, with technical details provided but no PoC, exploit code, or patch information.

    0000052
    281 followersView on X

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