How severe is CVE-2018-16159?

CVE-2018-16159 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-2018-16159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16159?

CVE-2018-16159 affects Codemenschen Gift Vouchers. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16159?

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-2018-16159 published?

CVE-2018-16159 was published on 2018-08-30 and last updated on 2026-06-17.

CVE-2018-16159

CVE-2018-16159 is a critical-severity vulnerability in Codemenschen Gift Vouchers with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 50% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 50% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Codemenschen Gift Vouchers
Published: 2018-08-30
Last modified: 2026-06-17

Description

The Gift Vouchers plugin through 2.0.1 for WordPress allows SQL Injection via the template_id parameter in a wp-admin/admin-ajax.php wpgv_doajax_front_template request.

Frequently asked questions

What is CVE-2018-16159?: The Gift Vouchers plugin through 2.0.1 for WordPress allows SQL Injection via the template_id parameter in a wp-admin/admin-ajax.php wpgv_doajax_front_template request.
How severe is CVE-2018-16159?: CVE-2018-16159 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-2018-16159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16159?: CVE-2018-16159 affects Codemenschen Gift Vouchers. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16159?: 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-2018-16159 published?: CVE-2018-16159 was published on 2018-08-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:codemenschen:gift_vouchers:*:*:*:*:*:wordpress:*:*

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