How severe is CVE-2026-23615?

CVE-2026-23615 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-23615 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23615?

CVE-2026-23615 affects Gfi Mailessentials. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23615?

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

Does CVE-2026-23615 have an EU (EUVD) identifier?

Yes. CVE-2026-23615 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7807.

When was CVE-2026-23615 published?

CVE-2026-23615 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2026-23615

CVE-2026-23615 is a medium-severity vulnerability in Gfi Mailessentials with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7807
Weakness: CWE-79
Affected product: Gfi Mailessentials
Published: 2026-02-19
Last modified: 2026-06-17

Description

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Sender Policy Framework Email Exceptions interface. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv4$txtEmailDescription parameter to /MailEssentials/pages/MailSecurity/SenderPolicyFramework.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

Frequently asked questions

What is CVE-2026-23615?: GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Sender Policy Framework Email Exceptions interface. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv4$txtEmailDescription parameter to /MailEssentials/pages/MailSecurity/SenderPolicyFramework.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.
How severe is CVE-2026-23615?: CVE-2026-23615 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-23615 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23615?: CVE-2026-23615 affects Gfi Mailessentials. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23615?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-23615 have an EU (EUVD) identifier?: Yes. CVE-2026-23615 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7807.
When was CVE-2026-23615 published?: CVE-2026-23615 was published on 2026-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gfi:mailessentials:*:*:*:*:*:*:*:*

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