How severe is CVE-2023-36466?

CVE-2023-36466 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-36466 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36466?

CVE-2023-36466 primarily affects Discourse. In total, 210 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-36466?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-36466 published?

CVE-2023-36466 was published on 2023-07-14 and last updated on 2026-06-17.

CVE-2023-36466

CVE-2023-36466 is a low-severity vulnerability in Discourse with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Discourse
Published: 2023-07-14
Last modified: 2026-06-17

Description

Discourse is an open source discussion platform. When editing a topic, there is a vulnerability that enables a user to bypass the topic title validations for things like title length, number of emojis in title and blank topic titles. The issue is patched in the latest stable, beta and tests-passed version of Discourse.

Frequently asked questions

What is CVE-2023-36466?: Discourse is an open source discussion platform. When editing a topic, there is a vulnerability that enables a user to bypass the topic title validations for things like title length, number of emojis in title and blank topic titles. The issue is patched in the latest stable, beta and tests-passed version of Discourse.
How severe is CVE-2023-36466?: CVE-2023-36466 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-36466 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36466?: CVE-2023-36466 primarily affects Discourse. In total, 210 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-36466?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-36466 published?: CVE-2023-36466 was published on 2023-07-14 and last updated on 2026-06-17.

References

https://github.com/discourse/discourse/security/advisories/GHSA-4hjh-wg43-p932

Affected products (210)

cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta5:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta6:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta6b:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta7:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.1.0:beta8:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta5:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta6:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta7:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta8:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.2.0:beta9:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta10:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta11:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta5:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta6:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta7:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta8:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.3.0:beta9:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta10:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta11:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta12:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta5:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta6:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:1.4.0:beta7:*:*:beta:*:*:*

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