EUVD-2026-89853
GHSA-h82c-cqjf-5wp2
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable object injection triggerable by a self-service Subscriber account (PR:L), no interaction; full C/I/A assumes an available POP gadget chain, consistent with the vendor vector.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Subscriber PHP Object Injection in Conversational Forms for ChatBot <= 1.5.0 versions.
AnalysisAI
PHP object injection in the quantumcloud Conversational Forms for ChatBot WordPress plugin (versions through 1.5.0) lets any authenticated Subscriber-level user reach full confidentiality, integrity, and availability impact, matching the High 8.8 CVSS 3.1 score (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The attack is remote, low-complexity, and requires no user interaction, but real-world severity depends on whether WordPress core or other installed plugins supply a usable PHP POP gadget chain that turns object injection into code execution or destructive file/database operations. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a low-privilege authenticated WordPress account at Subscriber level (PR:L) on a site running Conversational Forms for ChatBot plugin version <= 1.5.0 by quantumcloud; no user interaction is needed (UI:N) and the attack is remote over the network (AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) yields a High 8.8 and describes a network-reachable, low-complexity flaw exploitable by a low-privilege authenticated user (PR:L) with no user interaction, and full C/I/A impact - consistent with CWE-502 PHP Object Injection where a viable POP gadget chain leads to code execution or destructive file/database operations. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The supplied references do not identify a vendor-released patch, so the primary mitigation is to deactivate and remove the Conversational Forms for ChatBot plugin until a fixed version is published, and to monitor the Patchstack advisory page for updates. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every WordPress installation running Conversational Forms for ChatBot and confirm whether any instance is on a version at or below 1.5.0; where the plugin is not business-critical, deactivate and remove it immediately, and where it must stay live, restrict the ability to self-register Subscriber accounts and add virtual-patching or request-filtering rules at the WAF/reverse-proxy layer to block injection attempts against its endpoints. …
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External POC / Exploit Code
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