How severe is CVE-2023-27891?

CVE-2023-27891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-27891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27891?

CVE-2023-27891 primarily affects Rami Pretix. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-27891?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-27891 published?

CVE-2023-27891 was published on 2023-03-06 and last updated on 2026-06-17.

CVE-2023-27891

CVE-2023-27891 is a high-severity vulnerability in Rami Pretix with a CVSS 3.x base score of 7.5. 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-613.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Rami Pretix
Published: 2023-03-06
Last modified: 2026-06-17

Description

rami.io pretix before 4.17.1 allows OAuth application authorization from a logged-out session. The fixed versions are 4.15.1, 4.16.1, and 4.17.1.

Frequently asked questions

What is CVE-2023-27891?: rami.io pretix before 4.17.1 allows OAuth application authorization from a logged-out session. The fixed versions are 4.15.1, 4.16.1, and 4.17.1.
How severe is CVE-2023-27891?: CVE-2023-27891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-27891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27891?: CVE-2023-27891 primarily affects Rami Pretix. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-27891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-27891 published?: CVE-2023-27891 was published on 2023-03-06 and last updated on 2026-06-17.

References

https://pretix.eu/about/en/blog/20230306-release-4171/

Affected products (3)

cpe:2.3:a:rami:pretix:*:*:*:*:*:*:*:*
cpe:2.3:a:rami:pretix:4.16.0:*:*:*:*:*:*:*
cpe:2.3:a:rami:pretix:4.17.0:*:*:*:*:*:*:*

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