CVE-2023-32061Network attack vector

Comment hiding via unrestricted iframe rendering

Published Jun 13, 2023 · Updated Jan 2, 2025

Incorrect authorization in Discourse before 3.0.4 or 3.1.0.beta5 allows remote authenticated users to hide comments via a crafted iframe. The topic-creation path accepts and renders an iframe tag without restrictions, letting crafted frame markup obscure comments that follow the post. A valid account able to create a topic is required, and the documented consequence is manipulation of comment visibility.

CVSS severity5.4
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Discourse before 3.0.4 or 3.1.0.beta5 allows remote authenticated users to hide comments via a crafted iframe. The topic-creation path accepts and renders an iframe tag without restrictions, letting crafted frame markup obscure comments that follow the post. A valid account able to create a topic is required, and the documented consequence is manipulation of comment visibility.

The record

CVE
CVE-2023-32061
Published
Jun 13, 2023
Updated
Jan 2, 2025
Vendor
Discourse
Product
Discourse
Classifications
CWE-863, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 2025Record 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=< 3.0.4
  2. Affected versionversion=>= 3.1.0.beta1, < 3.1.0.beta5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Discourse · Discourseversion=< 3.0.4; version=>= 3.1.0.beta1, < 3.1.0.beta5

Published CVSS scores

5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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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