Deserialization in Phpems

CVE-2023-6654

A vulnerability classified as critical was found in PHPEMS 6.x/7.x/8.x/9.0. Affected by this vulnerability is an unknown functionality in the library lib/session.cls.php of the component Session Data Handler. The manipulation leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-247357 was assigned to this vulnerability.

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.017 (75.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-6654: held from 0.017 to 0.017.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

  • Phpems — versions 6.0, 7.0
  • Phpems — versions 6.x, 7.x, 8.x

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • vuldb.com/ (Permissions Required, technical-description, VDB Entry, Third Party Advisory, vdb-entry)
  • vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry, Third Party Advisory)
  • note.zhaoj.in/share/jw4Hp9cq7T69 (Permissions Required, exploit, broken-link)

Frequently asked questions

What is CVE-2023-6654?
CVE-2023-6654 is a medium-severity vulnerability in Phpems, classified under Deserialization of Untrusted Data. CVSS score: 6.3/10. Published 2023-12-10.
How severe is CVE-2023-6654?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2023-6654 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.