How severe is CVE-2026-27723?

CVE-2026-27723 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-27723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27723?

CVE-2026-27723 affects Openproject. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27723?

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

Does CVE-2026-27723 have an EU (EUVD) identifier?

Yes. CVE-2026-27723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9846.

When was CVE-2026-27723 published?

CVE-2026-27723 was published on 2026-03-05 and last updated on 2026-06-17.

CVE-2026-27723

CVE-2026-27723 is a medium-severity vulnerability in Openproject 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9846
Weakness: CWE-284
Affected product: Openproject
Published: 2026-03-05
Last modified: 2026-06-17

Description

OpenProject is an open-source, web-based project management software. Prior to versions 17.0.5 and 17.1.2, an attacker can create wiki pages belonging to unpermitted projects through an improperly authenticated request. This issue has been patched in versions 17.0.5 and 17.1.2.

Frequently asked questions

What is CVE-2026-27723?: OpenProject is an open-source, web-based project management software. Prior to versions 17.0.5 and 17.1.2, an attacker can create wiki pages belonging to unpermitted projects through an improperly authenticated request. This issue has been patched in versions 17.0.5 and 17.1.2.
How severe is CVE-2026-27723?: CVE-2026-27723 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-27723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27723?: CVE-2026-27723 affects Openproject. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27723 have an EU (EUVD) identifier?: Yes. CVE-2026-27723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9846.
When was CVE-2026-27723 published?: CVE-2026-27723 was published on 2026-03-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*

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