How severe is CVE-2019-16645?

CVE-2019-16645 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-16645 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16645?

CVE-2019-16645 affects Embedthis Goahead. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16645?

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

When was CVE-2019-16645 published?

CVE-2019-16645 was published on 2019-09-20 and last updated on 2026-06-17.

CVE-2019-16645

CVE-2019-16645 is a high-severity vulnerability in Embedthis Goahead with a CVSS 3.x base score of 8.6. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 5.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Embedthis Goahead
Published: 2019-09-20
Last modified: 2026-06-17

Description

An issue was discovered in Embedthis GoAhead 2.5.0. Certain pages (such as goform/login and config/log_off_page.htm) create links containing a hostname obtained from an arbitrary HTTP Host header sent by an attacker. This could potentially be used in a phishing attack.

Frequently asked questions

What is CVE-2019-16645?: An issue was discovered in Embedthis GoAhead 2.5.0. Certain pages (such as goform/login and config/log_off_page.htm) create links containing a hostname obtained from an arbitrary HTTP Host header sent by an attacker. This could potentially be used in a phishing attack.
How severe is CVE-2019-16645?: CVE-2019-16645 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-16645 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16645?: CVE-2019-16645 affects Embedthis Goahead. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16645?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-16645 published?: CVE-2019-16645 was published on 2019-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:embedthis:goahead:2.5.0:*:*:*:*:*:*:*

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