Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2017-20267

CVE-2017-20267HIGH

Joomlathat Calendar Planner — Joomla! Component Calendar Planner 1.0.1 SQL Injection

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   L   N    8.8   .0049   40.1     —

AFFECTED
  Product           Versions  Fixed
  Calendar Planner  1.0.1 –   —

TIMELINE
  Jun 19  Reserved by VulnCheck
  Jun 19  Published (CNA: VulnCheck)
  Aug 19  EXPLOIT PUBLISHED — CVE-2017-20267 (Joomlathat Calendar Planner). Public exploit reference added.

CWE-89 · CNA: VulnCheck · CVSS v4.0 · 4 references · NVD status: Analyzed

Description

Joomla! Component Calendar Planner 1.0.1 contains an SQL injection vulnerability that allows unauthenticated attackers to inject SQL commands through the category_id parameter. Attackers can send GET requests to the events view with malicious SQL code in the category_id parameter to extract sensitive database information.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 19, 2026	Reserved	Reserved by VulnCheck
June 19, 2026	Published	Published (CNA: VulnCheck)
August 19, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2017-20267 (Joomlathat Calendar Planner). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Joomlathat	Calendar Planner	—	1.0.1	—

Weaknesses

CWE-89

References (4)

http://joomlathat.com/ [Product]
https://extensions.joomla.org/extensions/extension/calendars-a-events/events/calendar-planner/ [Product]
https://www.exploit-db.com/exploits/42501 [Exploit, VDB Entry]
https://www.vulncheck.com/advisories/joomla-component-calendar-planner-sql-injection [Third Party Advisory]

Authoritative record: CVE-2017-20267 at cve.org

Vendors: joomlathat

Weaknesses: CWE-89

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-20267 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.