CVE-2023-49778
CWE-502Published: December 21, 2023· Updated: Jun 17, 2026
Official Description
Deserialization of Untrusted Data vulnerability in Hakan Demiray Sayfa Sayac.This issue affects Sayfa Sayac: from n/a through 2.6.
Risk Analysis
The Sayfa Sayac plugin for WordPress is affected by a deserialization of untrusted data vulnerability. This critical flaw allows remote, unauthenticated attackers to execute arbitrary code, resulting in a CVSS score of 9.8.
There is no public exploit known for this vulnerability, and it is not in the KEV database. The flaw is remotely exploitable with low complexity.
Update the Sayfa Sayac plugin to the latest version. Ensure that all deserialization processes are properly secured against untrusted input.
Technical Analysis
CVE-2023-49778 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
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-502)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-49778 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts