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Seriously Simple Podcasting EUVDEUVD-2026-105041

| CVE-2026-112834 MEDIUM
Missing Authorization (CWE-862)
2026-10-20 Patchstack GHSA-556c-m6fj-7vp3
5.3
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
    Identify site running vulnerable plugin
  2. Exploit
    Send crafted unauthenticated HTTP request
  3. Execution
    Reach endpoint missing authorization check
  4. Impact
    Retrieve restricted plugin data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

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

Exploitation Conditions

The target must be a WordPress site running the Castos Seriously Simple Podcasting plugin at version 3.17.0 or earlier, reachable over the network. The CVSS vector (PR:N/UI:N) indicates no authentication and no user interaction are required, so default configurations are exploitable. The practical limiting factor is impact scope, not access: the flaw yields only low-level confidentiality disclosure (C:L, no I/A impact), meaning an attacker gains unauthorized read access to plugin-controlled data rather than code execution or site takeover. The input does not name the specific endpoint/action lacking the capability check, so the exact data exposed is not specified in available sources.

Impact

This is a genuine but moderate-priority issue, best characterized as a high-reach-but-low-impact flaw rather than a critical one. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) confirms it is remotely and unauthenticatedly exploitable at low complexity against default WordPress installs, which raises reachability; however, the impact profile is narrow - C:L/I:N/A:N means limited confidentiality disclosure only, with no integrity or availability effect, consistent with a Missing Authorization (CWE-862) read-type access-control gap. No EPSS score, KEV listing, or public POC was provided in the input, so there is no positive signal of active exploitation or imminent weaponization. SSVC-style reasoning: exploitation status is 'none observed,' technical impact is 'partial,' and while the low complexity makes it potentially automatable, the limited payoff (information exposure) reduces attacker incentive. Net: patch in normal cycle rather than emergency, prioritizing internet-facing WordPress sites running the plugin. Note the discovery/disclosure is single-sourced to Patchstack, so affected-version and impact details are not independently corroborated.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends a crafted HTTP request to a WordPress site running Seriously Simple Podcasting (≤3.17.0), invoking a plugin endpoint or action that fails to enforce an authorization/capability check. Because the access-control level is incorrectly configured, the attacker retrieves plugin-managed data they should not be able to see. No public exploit code was identified at time of analysis, and the CVSS low attack complexity means no special timing or conditions are needed.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 20, 2026

Missing authorization (CWE-862) in the Castos Seriously Simple Podcasting WordPress plugin through 3.17.0 lets unauthenticated remote attackers reach functionality that should be capability-gated, per the CVSS vector (PR:N/UI:N) on default configurations. The practical consequence is limited to low-level confidentiality disclosure - unauthorized read access to plugin-controlled data - with no integrity or availability impact. Exploitation is trivially reachable but low-impact, so this is a moderate-priority exposure rather than a site-takeover risk; no public exploit code or active exploitation (CISA KEV) is identified at time of analysis, and an EPSS score was not supplied with the source data.

RemediationAI

Update the Seriously Simple Podcasting plugin to a release later than 3.17.0 - check the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/seriously-simple-podcasting/vulnerability/wordpress-seriously-simple-podcasting-plugin-3-17-0-broken-access-control-vulnerability?_s_id=cve) for the exact fixed version, since the source data does not state one, then verify the installed version in the WordPress Plugins screen. If immediate updating is not possible, remove the plugin, or restrict exposure by fronting the site with WAF rules or a reverse proxy that blocks unauthenticated requests to the plugin's REST namespace and admin-ajax actions - the trade-off is that this also blocks legitimate public podcast features such as embedded players or feed endpoints, so test against your site's public functionality first. Additional compensating controls: apply virtual patching via a WordPress security plugin that enforces capability checks, and review web server logs for anomalous unauthenticated requests to plugin endpoints as a detection measure. Because the issue is confidentiality-only and requires no authentication, treat any prior unauthenticated access to plugin endpoints as potential data exposure and rotate any secrets or listener data the plugin serves if the exact exposed data set is later confirmed.

Affected VersionsENISA

Seriously Simple Podcasting 0 ≤3.17.0

Affected Packages

euvd seriously_simple_podcasting 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 plugin is a WordPress extension built on the WordPress plugin API, where access control normally relies on capability checks (current_user_can) and nonce verification on AJAX/REST handlers and admin-post actions. CWE-862 (Missing Authorization) means one such handler in Seriously Simple Podcasting up to 3.17.0 performs its data operation without verifying that the caller holds the required capability, producing an incorrectly configured access control level. Because WordPress routes AJAX (admin-ajax.php) and REST requests to plugin code before any template-level gating, a missing check is directly reachable over HTTP; the CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N confirms network reachability, no privileges, no user interaction, and a confidentiality-only impact. The affected CPE is cpe:2.3:a:castos:seriously_simple_podcasting:*:*:*:*:*:*:*:* across the 3.x line through 3.17.0. The reporting source does not identify the exact endpoint or action lacking the capability check, so the precise data set exposed (for example episode, series, or settings metadata served by the plugin) cannot be confirmed from available data; the low confidentiality rating bounds the severity accordingly.

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Severity by source

Vendor (Patchstack) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 5.3 MEDIUM

Missing authorization reachable by unauthenticated remote request (AV:N/PR:N/UI:N/AC:L); impact limited to low confidentiality disclosure, so I:N/A:N.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

DescriptionCVE.org

Missing Authorization vulnerability in Castos Seriously Simple Podcasting seriously-simple-podcasting allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Seriously Simple Podcasting: from n/a through 3.17.0.

Threat Intelligence Overview

EPSS Score
0.3%
Top 84% exploitable
Prevalence
Medium
popular WordPress podcasting plugin, common but not on most sites
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 0.3%
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· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2024-3751 MEDIUM POC
4.8 Jul 13

The Seriously Simple Podcasting WordPress plugin before 3.3.0 does not sanitise and escape some of its settings, which c

CVE-2024-25599 HIGH
7.1 Mar 28

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Craig Hewitt Serio

CVE-2026-112833 MEDIUM
6.5 Oct 20

Stored cross-site scripting in Castos Seriously Simple Podcasting affects WordPress sites running versions through 3.17.

CVE-2024-9667 MEDIUM
6.1 Nov 05

The Seriously Simple Podcasting plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of a

CVE-2025-46261 MEDIUM
5.9 Apr 24

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Craig Hewitt Serio

CVE-2025-49923 MEDIUM
5.9 Oct 22

DOM-based XSS in the Seriously Simple Podcasting WordPress plugin (versions through 3.11.1) enables a high-privileged at

CVE-2025-66059 MEDIUM
5.3 Nov 21

Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Craig Hewitt Seriously Simpl

CVE-2025-66060 MEDIUM
5.3 Nov 21

Missing Authorization vulnerability in Craig Hewitt Seriously Simple Podcasting seriously-simple-podcasting allows Explo

CVE-2026-39505 MEDIUM
5.3 Apr 08

Missing authorization in Craig Hewitt Seriously Simple Podcasting plugin allows unauthenticated attackers to read sensit

CVE-2025-62882 MEDIUM
4.3 Oct 27

Authenticated low-privilege users of the Seriously Simple Podcasting WordPress plugin (version ≤ 3.13.0) can bypass acce

CVE-2025-66061 MEDIUM
4.3 Nov 21

Cross-Site Request Forgery (CSRF) vulnerability in Craig Hewitt Seriously Simple Podcasting seriously-simple-podcasting

CVE-2022-40132 MEDIUM
4.3 Sep 23

Cross-Site Request Forgery (CSRF) vulnerability in Seriously Simple Podcasting plugin <= 2.16.0 at WordPress, leading to

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