CVE-2023-46990
CWE-502Published: November 20, 2023· Updated: Jun 17, 2026
Official Description
Deserialization of Untrusted Data in PublicCMS v.4.0.202302.e allows a remote attacker to execute arbitrary code via a crafted script to the writeReplace function.
Risk Analysis
PublicCMS v.4.0.202302.e is vulnerable to remote code execution due to insecure deserialization of untrusted data. An attacker can trigger this by sending a crafted script to the writeReplace function, leading to full system compromise.
There is no public exploit known for this issue, and it is not tracked in the CISA KEV.
Upgrade to a patched version of PublicCMS that addresses the deserialization vulnerability.
Technical Analysis
CVE-2023-46990 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Related CVEs (CWE-502)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-46990 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts