CVE-2021-32772Public exploitNetwork attack vector

Command execution via unsanitized podcast feed HTML

Published Aug 3, 2021 · Updated Aug 3, 2024

Cross-site scripting in MrChuckomo Poddycast before 0.8.1 allows attackers to execute commands through malicious podcast feed data. The helper_entries.js and feed.js code assigns feed-supplied titles and channel names directly to innerHTML sinks without sanitizing HTML or JavaScript. Execution occurs when a user bookmarks attacker-controlled podcast data and opens Favorites, allowing commands with the desktop application's privileges.

CVSS severity8.8
High
EPSS probability2.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in MrChuckomo Poddycast before 0.8.1 allows attackers to execute commands through malicious podcast feed data. The helper_entries.js and feed.js code assigns feed-supplied titles and channel names directly to innerHTML sinks without sanitizing HTML or JavaScript. Execution occurs when a user bookmarks attacker-controlled podcast data and opens Favorites, allowing commands with the desktop application's privileges.

The record

CVE
CVE-2021-32772
Published
Aug 3, 2021
Updated
Aug 3, 2024
Vendor
MrChuckomo
Product
Poddycast
Classifications
CWE-79, CWE-78, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 3, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 0.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MrChuckomo · Poddycastversion=< 0.8.1

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
8.8GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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