CVE-2019-16885

Name: CVE-2019-16885
Creator: NVD / NIST
Published: 2019-12-03T20:15:11.077+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.60%

Last modified Jun 17, 2026

CVE-2019-16885 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 4.60% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

4.60%

90.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Okay-Cms	Okaycms	<= 2.3.4

References

http://packetstormsecurity.com/files/155583/OkayCMS-2.3.4-Remote-Code-Execution.htmlExploit, Third Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/15Exploit, Third Party Advisory
https://www.ait.ac.at/ait-sa-20191129-01-unauthenticated-remote-code-execution-okaycmsExploit, Third Party Advisory
http://packetstormsecurity.com/files/155583/OkayCMS-2.3.4-Remote-Code-Execution.htmlExploit, Third Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/15Exploit, Third Party Advisory
https://www.ait.ac.at/ait-sa-20191129-01-unauthenticated-remote-code-execution-okaycmsExploit, Third Party Advisory

Timeline

Published: Dec 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-16885?

How severe is CVE-2019-16885?

CVE-2019-16885 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.60% probability of exploitation in the next 30 days.

How do I fix CVE-2019-16885?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16885?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST