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Ohio Extra CVE-2026-32571

| EUVDEUVD-2026-93234 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-10-06 Patchstack GHSA-8mpj-rg2x-vv7j
6.5
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Register or obtain subscriber account
  2. Delivery
    Inject XSS payload via plugin input
  3. Exploit
    Store malicious script on site
  4. Execution
    Lure admin to view content
  5. Persist
    Script executes in victim browser
  6. Impact
    Hijack session or escalate

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated WordPress account at subscriber level or higher (CVSS PR:L) on a site running the Ohio Extra plugin version 3.6.8 or earlier, plus victim interaction (UI:R) - a more privileged user such as an administrator must view the attacker-injected content for the script to execute. Limiting factors: the attacker cannot act purely unauthenticated, the payload only yields impact when a victim renders it, and the impact is confined to browser-context script execution (C:L/I:L) rather than direct server compromise. The specific vulnerable input field or parameter is not named in the available description.

Impact

This is a moderate-risk issue that should be prioritized below internet-facing unauthenticated flaws. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L, base 6.5) indicates network-reachable but authenticated exploitation requiring at least subscriber-level credentials (PR:L) AND victim interaction (UI:R), with a scope change (S:C) consistent with stored/reflected XSS executing in another user's browser context. No exploitation-probability signals elevate this: there is no CISA KEV listing, no EPSS score was supplied, and no public proof-of-concept is referenced - so exploitation status is 'no public exploit identified at time of analysis'. No SSVC decision data was provided. The signals are internally consistent (CVSS points to authenticated, interaction-dependent attack; absence of KEV/POC suggests it is not under active or widespread exploitation), so there is no conflict to flag. Overall: a real but conditional vulnerability (low-privilege account plus social engineering of a higher-privileged victim), not a drop-everything emergency.

Exploit ScenarioDerived

An attacker who has registered or obtained a WordPress subscriber account on a site running Ohio Extra <= 3.6.8 injects a malicious script payload through an input field the plugin fails to sanitize. When an administrator or another authenticated user views the attacker-controlled content, the script executes in their browser (scope change), potentially hijacking their session or performing actions on their behalf. No public exploit code is referenced, and successful exploitation depends on a privileged victim actually interacting with the injected content.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 06, 2026

Authenticated subscriber-level cross-site scripting (XSS) in the Ohio Extra WordPress plugin up to version 3.6.8 allows attackers with a subscriber account or higher to inject arbitrary JavaScript that executes in the browser of a higher-privileged user who views the injected content. The independent assessment rates this as a moderate-risk issue (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) with no availability impact, requiring victim interaction and confined to browser-context script execution rather than server compromise. No public exploit code has been identified at time of analysis, and there is no confirmed active exploitation (CISA KEV).

RemediationAI

No vendor-released patch version is specified in the provided data; users should monitor the Patchstack advisory and the plugin's update channel for a fixed release, as the affected range is up to and including 3.6.8. Until a patch is available, consider disabling or removing the Ohio Extra plugin if it is not essential. If the plugin must remain active, restrict the ability for subscriber-level users to post or edit content that is rendered to higher-privileged users, and consider implementing a Content Security Policy (CSP) that disallows inline scripts and restricts script sources to trusted domains; note that a strict CSP may break legitimate plugin functionality and requires careful testing. Additionally, administrators should avoid viewing untrusted user-submitted content while logged in, and can use WordPress security plugins that provide XSS filtering. The primary reference is the Patchstack advisory: https://patchstack.com/database/wordpress/plugin/ohio-extra/vulnerability/wordpress-ohio-extra-plugin-3-6-8-cross-site-scripting-xss-vulnerability?_s_id=cve.

Affected VersionsENISA

Ohio Extra n/a ≤3.6.8

Affected Packages

euvd ohio_extra no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The Ohio Extra plugin is a WordPress extension developed by Colabrio, identified by CPE cpe:2.3:a:colabrio:ohio_extra:*:*:*:*:*:*:*:*. The vulnerability is a classic CWE-79 (Improper Neutralization of Input During Web Page Generation) cross-site scripting flaw, where user-supplied input is not properly sanitized or escaped before being rendered in a web page. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N indicates network exploitability, low attack complexity, low privileges required (a subscriber-level account), user interaction required (the victim must view the malicious content), and changed scope because the injected script can affect resources beyond the vulnerable component (e.g., other users' sessions). The specific vulnerable parameter or field is not named in the available description, but the plugin's handling of subscriber-contributed content is the likely entry point.

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Severity by source

Vendor (Patchstack) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 5.4 MEDIUM

Subscriber account needed (PR:L), victim must render payload (UI:R), cross-context execution gives S:C with limited C/I; XSS has no real availability impact, so A:N.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

DescriptionCVE.org

Subscriber Cross Site Scripting (XSS) in Ohio Extra <= 3.6.8 versions.

Threat Intelligence Overview

EPSS Score
0.2%
Top 90% exploitable
Prevalence
Low
premium Colabrio WordPress theme add-on, limited paid install base
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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