How severe is CVE-2019-16885?

CVE-2019-16885 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-2019-16885 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16885?

CVE-2019-16885 affects Okay-cms Okaycms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16885?

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-2019-16885 published?

CVE-2019-16885 was published on 2019-12-03 and last updated on 2026-06-17.

CVE-2019-16885

CVE-2019-16885 is a critical-severity vulnerability in Okay-cms Okaycms with a CVSS 3.x base score of 9.8. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Okay-cms Okaycms
Published: 2019-12-03
Last modified: 2026-06-17

Description

In OkayCMS through 2.3.4, an unauthenticated attacker can achieve remote code execution by injecting a malicious PHP object via a crafted cookie. This could happen at two places: first in view/ProductsView.php using the cookie price_filter, and second in api/Comparison.php via the cookie comparison.

Frequently asked questions

What is CVE-2019-16885?: In OkayCMS through 2.3.4, an unauthenticated attacker can achieve remote code execution by injecting a malicious PHP object via a crafted cookie. This could happen at two places: first in view/ProductsView.php using the cookie price_filter, and second in api/Comparison.php via the cookie comparison.
How severe is CVE-2019-16885?: CVE-2019-16885 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-2019-16885 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16885?: CVE-2019-16885 affects Okay-cms Okaycms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16885?: 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-2019-16885 published?: CVE-2019-16885 was published on 2019-12-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:okay-cms:okaycms:*:*:*:*:*:*:*:*

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