How severe is CVE-2023-30611?

CVE-2023-30611 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-30611 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30611?

CVE-2023-30611 affects Discourse Reactions. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-30611?

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

When was CVE-2023-30611 published?

CVE-2023-30611 was published on 2023-04-19 and last updated on 2026-06-17.

CVE-2023-30611

CVE-2023-30611 is a medium-severity vulnerability in Discourse Reactions with a CVSS 3.x base score of 4.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Discourse Reactions
Published: 2023-04-19
Last modified: 2026-06-17

Description

Discourse-reactions is a plugin that allows user to add their reactions to the post in the Discourse messaging platform. In affected versions data about what reactions were performed on a post in a private topic could be leaked. This issue has been addressed in version 0.3. Users are advised to upgrade. Users unable to upgrade should disable the discourse-reactions plugin to fully mitigate the issue.

Frequently asked questions

What is CVE-2023-30611?: Discourse-reactions is a plugin that allows user to add their reactions to the post in the Discourse messaging platform. In affected versions data about what reactions were performed on a post in a private topic could be leaked. This issue has been addressed in version 0.3. Users are advised to upgrade. Users unable to upgrade should disable the discourse-reactions plugin to fully mitigate the issue.
How severe is CVE-2023-30611?: CVE-2023-30611 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-30611 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30611?: CVE-2023-30611 affects Discourse Reactions. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-30611?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-30611 published?: CVE-2023-30611 was published on 2023-04-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:discourse:reactions:0.2:*:*:*:*:*:*:*

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