How severe is CVE-2023-28359?

CVE-2023-28359 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-28359 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28359?

CVE-2023-28359 affects Rocket.chat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28359?

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

When was CVE-2023-28359 published?

CVE-2023-28359 was published on 2023-05-11 and last updated on 2026-06-17.

CVE-2023-28359

CVE-2023-28359 is a medium-severity vulnerability in Rocket.chat with a CVSS 3.x base score of 5.3. 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-89.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Rocket.chat
Published: 2023-05-11
Last modified: 2026-06-17

Description

A NoSQL injection vulnerability has been identified in the listEmojiCustom method call within Rocket.Chat. This can be exploited by unauthenticated users when there is at least one custom emoji uploaded to the Rocket.Chat instance. The vulnerability causes a delay in the server response, with the potential for limited impact.

Frequently asked questions

What is CVE-2023-28359?: A NoSQL injection vulnerability has been identified in the listEmojiCustom method call within Rocket.Chat. This can be exploited by unauthenticated users when there is at least one custom emoji uploaded to the Rocket.Chat instance. The vulnerability causes a delay in the server response, with the potential for limited impact.
How severe is CVE-2023-28359?: CVE-2023-28359 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-28359 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28359?: CVE-2023-28359 affects Rocket.chat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28359?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28359 published?: CVE-2023-28359 was published on 2023-05-11 and last updated on 2026-06-17.

References

https://hackerone.com/reports/1757676

Affected products (1)

cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*

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