How severe is CVE-2026-30880?

CVE-2026-30880 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-30880 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30880?

CVE-2026-30880 affects Basercms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30880?

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

Does CVE-2026-30880 have an EU (EUVD) identifier?

Yes. CVE-2026-30880 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17265.

When was CVE-2026-30880 published?

CVE-2026-30880 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-30880

CVE-2026-30880 is a critical-severity vulnerability in Basercms with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.2
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17265
Weakness: CWE-78
Affected product: Basercms
Published: 2026-03-31
Last modified: 2026-06-17

Description

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has an OS command injection vulnerability in the installer. This issue has been patched in version 5.2.3.

Frequently asked questions

What is CVE-2026-30880?: baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has an OS command injection vulnerability in the installer. This issue has been patched in version 5.2.3.
How severe is CVE-2026-30880?: CVE-2026-30880 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-30880 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30880?: CVE-2026-30880 affects Basercms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30880?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-30880 have an EU (EUVD) identifier?: Yes. CVE-2026-30880 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17265.
When was CVE-2026-30880 published?: CVE-2026-30880 was published on 2026-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*

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