How severe is CVE-2026-6953?

CVE-2026-6953 has a CVSS 4.0 base score of 5.1, rated medium severity.

Is CVE-2026-6953 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6953?

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

When was CVE-2026-6953 published?

CVE-2026-6953 was published on 2026-06-30.

CVE-2026-6953

CVE-2026-6953 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.1. 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 4.0 base score 5.1)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Published: 2026-06-30
Last modified: 2026-06-30

Description

HTML injection vulnerability in Intermark IT's WebControl CMS v3.5. This vulnerability allows an attacker to send an email containing malicious HTML code to a victim via the contact form. To exploit this vulnerability, the attacker must send a request using the 'nombreApellidos', 'dirección ', and 'comentarios ' parameters to '/processContact.do'.

Frequently asked questions

What is CVE-2026-6953?: HTML injection vulnerability in Intermark IT's WebControl CMS v3.5. This vulnerability allows an attacker to send an email containing malicious HTML code to a victim via the contact form. To exploit this vulnerability, the attacker must send a request using the 'nombreApellidos', 'dirección ', and 'comentarios ' parameters to '/processContact.do'.
How severe is CVE-2026-6953?: CVE-2026-6953 has a CVSS 4.0 base score of 5.1, rated medium severity.
Is CVE-2026-6953 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-6953?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-6953 published?: CVE-2026-6953 was published on 2026-06-30.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-intermark-its-webcontrol-cms

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