HOMEVULNERABILITIESCVE-2021-31745
HIGH

CVE-2021-31745

CWE-384Published: December 10, 2021· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

Session Fixation vulnerability in login.php in Pluck-CMS Pluck 4.7.15 allows an attacker to sustain unauthorized access to the platform. Because Pluck does not invalidate prior sessions after a password change, access can be sustained even after an administrator performs regular remediation attempts such as resetting their password.

NVD Source

Technical Analysis

CVE-2021-31745 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), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

pluck-cms1 product(s)
pluck
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

https://github.com/pluck-cms/pluck/issues/99Exploit · Third Party Advisory
https://github.com/pluck-cms/pluck/issues/99Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2021-31745
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-384
CISA KEVNo
Affected1 vendor(s)
PublishedDec 10, 2021

Related CVEs (CWE-384)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-31745 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.