CVE-2024-9667Network attack vector

Reflected XSS via unescaped add_query_arg URL

Published Nov 5, 2024 · Updated Apr 8, 2026

Reflected XSS in Castos Seriously Simple Podcasting 3.5.0 and earlier allows remote attackers to inject scripts through crafted URLs. The options handler passes an add_query_arg-generated URL to page output without applying the escaping required for an HTML URL context. Execution requires a user to follow a crafted link; the script then runs in the affected site's origin and can read or alter browser-accessible content.

CVSS severity6.1
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Castos Seriously Simple Podcasting 3.5.0 and earlier allows remote attackers to inject scripts through crafted URLs. The options handler passes an add_query_arg-generated URL to page output without applying the escaping required for an HTML URL context. Execution requires a user to follow a crafted link; the script then runs in the affected site's origin and can read or alter browser-accessible content.

The record

CVE
CVE-2024-9667
Published
Nov 5, 2024
Updated
Apr 8, 2026
Vendor
Castos
Product
Seriously Simple Podcasting
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Castos · Seriously Simple Podcastingversion=0 <=3.5.0

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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