How severe is CVE-2018-19550?

CVE-2018-19550 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-19550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19550?

CVE-2018-19550 primarily affects Interspire Email Marketer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-19550?

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-2018-19550 published?

CVE-2018-19550 was published on 2018-11-26 and last updated on 2026-06-17.

CVE-2018-19550

CVE-2018-19550 is a high-severity vulnerability in Interspire Email Marketer with a CVSS 3.x base score of 8.8. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Interspire Email Marketer
Published: 2018-11-26
Last modified: 2026-06-17

Description

Interspire Email Marketer through 6.1.6 allows arbitrary file upload via a surveys_submit.php "create survey and submit survey" operation, which can cause a .php file to be accessible under a admin/temp/surveys/ URI.

Frequently asked questions

What is CVE-2018-19550?: Interspire Email Marketer through 6.1.6 allows arbitrary file upload via a surveys_submit.php "create survey and submit survey" operation, which can cause a .php file to be accessible under a admin/temp/surveys/ URI.
How severe is CVE-2018-19550?: CVE-2018-19550 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-19550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19550?: CVE-2018-19550 primarily affects Interspire Email Marketer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-19550?: 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-2018-19550 published?: CVE-2018-19550 was published on 2018-11-26 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:interspire:email_marketer:*:*:*:*:*:*:*:*
cpe:2.3:a:interspire:email_marketer:6.1.8:*:*:*:*:*:*:*

More vulnerabilities in Interspire Email Marketer

CVE-2017-14322 — Critical (CVSS 9.8): The function in charge to check whether the user is already logged in init.php in Interspire Email Marketer (IEM) prior…
CVE-2022-40777 — High (CVSS 8.8): Interspire Email Marketer through 6.5.0 allows arbitrary file upload via a surveys_submit.php "create survey and submit…
CVE-2018-19553 — High (CVSS 8.8): Interspire Email Marketer through 6.1.6 has SQL Injection via an updateblock sortorder request to Dynamiccontenttags.php
CVE-2018-19552 — High (CVSS 8.8): Interspire Email Marketer through 6.1.6 has SQL Injection via a deleteblock blockid[] request to Dynamiccontenttags.php.
CVE-2018-19551 — High (CVSS 8.8): Interspire Email Marketer through 6.1.6 has SQL Injection via a checkduplicatetags tagname request to…
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