How severe is CVE-2018-9920?

CVE-2018-9920 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-9920 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9920?

CVE-2018-9920 affects K2 Smartforms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-9920?

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

When was CVE-2018-9920 published?

CVE-2018-9920 was published on 2018-05-24 and last updated on 2026-06-17.

CVE-2018-9920

CVE-2018-9920 is a medium-severity vulnerability in K2 Smartforms with a CVSS 3.x base score of 6.5. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: K2 Smartforms
Published: 2018-05-24
Last modified: 2026-06-17

Description

Server side request forgery exists in the runtime application in K2 smartforms 4.6.11 via a modified hostname in an https://*/Identity/STS/Forms/Scripts URL.

Frequently asked questions

What is CVE-2018-9920?: Server side request forgery exists in the runtime application in K2 smartforms 4.6.11 via a modified hostname in an https://*/Identity/STS/Forms/Scripts URL.
How severe is CVE-2018-9920?: CVE-2018-9920 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-9920 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9920?: CVE-2018-9920 affects K2 Smartforms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-9920?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-9920 published?: CVE-2018-9920 was published on 2018-05-24 and last updated on 2026-06-17.

References

http://www.securityfocus.com/archive/1/542035/100/0/threaded

Affected products (1)

cpe:2.3:a:k2:smartforms:4.6.11:*:*:*:*:*:*:*

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