CVE-2026-84934

JCH Optimize < 6.0.1 - Subscriber+ Stored XSS via getcacheinfo Task Override

HIGH
8
CVSS Score
Published: September 5, 2026 at 06:00 AM UTC
Updated: September 8, 2026 at 07:29 PM UTC
1 product affected across 1 vendorJCH Optimize

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Severity
HIGH8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The JCH Optimize WordPress plugin before 6.0.1 does not perform a capability check on one of its authenticated AJAX actions and lets the request choose which internal action runs, allowing any authenticated users such as Subscribers to import arbitrary JCH Optimize WordPress plugin before 6.0.1 settings and store a script that executes in the browser of any visitor or administrator viewing the site.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

60%
v < 6.0.1
Affected range stops below 6.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/d808ad17-d20e-4ee5-94f3-935c10cde772/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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