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No exploitation reported

CVE-2021-36879

No exploitation reported by the sources we read.

  • Published2021-09-27
  • WeaknessCWE-264

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Unauthenticated Privilege Escalation vulnerability in WordPress uListing plugin (versions <= 2.0.5). Possible if WordPress configuration allows user registration.

Timeline

dates in UTC
  1. 2021-09-2716:15CVE publishedNVD

Versions per branch

NVD
Stylemixthemes ulisting
BranchAffectedFixed in
2.0≤ 2.0.5no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As Patchstack, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • StylemixThemes uListing (WordPress plugin)
    Affected
    • ≥ <= 2.0.5, ≤ 2.0.5no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2021-09-27

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-03-28
  • CNACVSS 3.19.8known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-264known since 2026-10-23
  • FIRST EPSSEPSS score2.2 %2026-11-09
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-09-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-fwpf-hpw8-g5p6

Frequently asked questions

What is CVE-2021-36879?

Unauthenticated Privilege Escalation vulnerability in WordPress uListing plugin (versions <= 2.0.5). Possible if WordPress configuration allows user registration.

Is CVE-2021-36879 actively exploited?

Active exploitation of CVE-2021-36879 has not been confirmed. Its EPSS score was 2.2% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-36879?

CVE-2021-36879 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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