How severe is CVE-2023-28107?

CVE-2023-28107 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-28107 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28107?

CVE-2023-28107 primarily affects Discourse. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28107?

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

When was CVE-2023-28107 published?

CVE-2023-28107 was published on 2023-03-17 and last updated on 2026-06-17.

CVE-2023-28107

CVE-2023-28107 is a medium-severity vulnerability in Discourse with a CVSS 3.x base score of 4.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Discourse
Published: 2023-03-17
Last modified: 2026-06-17

Description

Discourse is an open-source discussion platform. Prior to version 3.0.2 of the `stable` branch and version 3.1.0.beta3 of the `beta` and `tests-passed` branches, a user logged as an administrator can request backups multiple times, which will eat up all the connections to the DB. If this is done on a site using multisite, then it can affect the whole cluster. The vulnerability is patched in version 3.0.2 of the `stable` branch and version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.

Frequently asked questions

What is CVE-2023-28107?: Discourse is an open-source discussion platform. Prior to version 3.0.2 of the `stable` branch and version 3.1.0.beta3 of the `beta` and `tests-passed` branches, a user logged as an administrator can request backups multiple times, which will eat up all the connections to the DB. If this is done on a site using multisite, then it can affect the whole cluster. The vulnerability is patched in version 3.0.2 of the `stable` branch and version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
How severe is CVE-2023-28107?: CVE-2023-28107 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-28107 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28107?: CVE-2023-28107 primarily affects Discourse. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-28107?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28107 published?: CVE-2023-28107 was published on 2023-03-17 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*
cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.1.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.1.0:beta2:*:*:beta:*:*:*

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