CVE-2019-16885 — In OkayCMS through 2

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 th

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-12-03T19:50:21.000Z
• Last modified: 2024-08-05T01:24:48.358Z

09References

• www.ait.ac.at — https://www.ait.ac.at/ait-sa-20191129-01-unauthenticated-remote-code-execution-o…
• seclists.org — http://seclists.org/fulldisclosure/2019/Dec/15
• packetstormsecurity.com — http://packetstormsecurity.com/files/155583/OkayCMS-2.3.4-Remote-Code-Execution.…