How severe is CVE-2026-30237?

CVE-2026-30237 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-30237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30237?

CVE-2026-30237 affects Intermesh Group-office. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30237?

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

Does CVE-2026-30237 have an EU (EUVD) identifier?

Yes. CVE-2026-30237 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10079.

When was CVE-2026-30237 published?

CVE-2026-30237 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2026-30237

CVE-2026-30237 is a medium-severity vulnerability in Intermesh Group-office with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 2.1
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10079
Weakness: CWE-79
Affected product: Intermesh Group-office
Published: 2026-03-06
Last modified: 2026-06-17

Description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.155, 25.0.88, and 26.0.10, there is a reflected XSS vulnerability in the GroupOffice installer, endpoint install/license.php. The POST field license is rendered without escaping inside a <textarea>, allowing a </textarea><script>...</script> breakout.. This issue has been patched in versions 6.8.155, 25.0.88, and 26.0.10.

Frequently asked questions

What is CVE-2026-30237?: Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.155, 25.0.88, and 26.0.10, there is a reflected XSS vulnerability in the GroupOffice installer, endpoint install/license.php. The POST field license is rendered without escaping inside a <textarea>, allowing a </textarea><script>...</script> breakout.. This issue has been patched in versions 6.8.155, 25.0.88, and 26.0.10.
How severe is CVE-2026-30237?: CVE-2026-30237 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-30237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30237?: CVE-2026-30237 affects Intermesh Group-office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30237?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-30237 have an EU (EUVD) identifier?: Yes. CVE-2026-30237 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10079.
When was CVE-2026-30237 published?: CVE-2026-30237 was published on 2026-03-06 and last updated on 2026-06-17.

References

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-hchr-32xh-x5rx

Affected products (1)

cpe:2.3:a:intermesh:group-office:*:*:*:*:*:*:*:*

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