CRITICALCVSS v3.1 9.8Vulnerability

CVE-2026-119077

The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.3.9 via the 'form (specifically the attacker-controlled ticket_label field inside the url-encoded form string)' parameter parameter. This is due to missing server-side authentication and the absence of a class allowlist on deserialization, with the only guard being a nonce publicly emitted on any page carrying the [wsdesk_support] shortcode. This makes it possible for unauthenticated attackers to execute code on the server. A successful exploit requires a single anonymous GET to any public page carrying the [wsdesk_support] shortcode to harvest the publicly emitted wsdesk_nonce value, after which a single unauthenticated POST completes the attack.

Properties

Severity
CRITICAL
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.01337
Cvss score
9.8
Cvss severity
CRITICAL
Retrieved at
2026-11-14T00:51:03+00:00
Score
9.8
Last source
FIRST EPSS
Cvss version
3.1
Cve id
CVE-2026-119077
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
First seen by Signal
2026-11-13T17:31:47+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published at
2026-11-13T10:17:26.483
Last modified
2026-11-13T23:17:13.633
Epss percentile
0.71709

Related Entities (1)

HAS_WEAKNESS (1)

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CVE-2026-119077 (CVSS v3.1 9.8) — Ninja Signal Threat Intelligence | Ninja Signal