How severe is CVE-2018-13981?

CVE-2018-13981 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-13981 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-13981?

CVE-2018-13981 affects Zeta-producer Zeta Producer Desktop Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-13981?

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

When was CVE-2018-13981 published?

CVE-2018-13981 was published on 2018-07-16 and last updated on 2026-06-17.

CVE-2018-13981

CVE-2018-13981 is a critical-severity vulnerability in Zeta-producer Zeta Producer Desktop Cms with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Zeta-producer Zeta Producer Desktop Cms
Published: 2018-07-16
Last modified: 2026-06-17

Description

The websites that were built from Zeta Producer Desktop CMS before 14.2.1 are vulnerable to unauthenticated remote code execution due to a default component that permits arbitrary upload of PHP files, because the formmailer widget blocks .php files but not .php5 or .phtml files. This is related to /assets/php/formmailer/SendEmail.php and /assets/php/formmailer/functions.php.

Frequently asked questions

What is CVE-2018-13981?: The websites that were built from Zeta Producer Desktop CMS before 14.2.1 are vulnerable to unauthenticated remote code execution due to a default component that permits arbitrary upload of PHP files, because the formmailer widget blocks .php files but not .php5 or .phtml files. This is related to /assets/php/formmailer/SendEmail.php and /assets/php/formmailer/functions.php.
How severe is CVE-2018-13981?: CVE-2018-13981 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-13981 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-13981?: CVE-2018-13981 affects Zeta-producer Zeta Producer Desktop Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-13981?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-13981 published?: CVE-2018-13981 was published on 2018-07-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zeta-producer:zeta_producer_desktop_cms:*:*:*:*:*:*:*:*

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