# CVE-2017-20281 — Joomlaboat Extra Search

> As of 2026-06-19, CVE-2017-20281 is a HIGH-severity vulnerability in Joomlaboat Extra Search, CVSS v3.1 8.2. No Threadlinqs-tracked threat campaign has been attributed to CVE-2017-20281 as of 2026-06-19; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-06-19

## What is CVE-2017-20281?

Joomla! Component Extra Search 2.2.8 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the establename parameter. Attackers can send GET requests to index.php with the option=com_extrasearch parameter and malicious SQL in the establename field to extract sensitive database information.

The record classifies CVE-2017-20281 under weakness class [CWE-89](https://intel.threadlinqs.com/cwe/CWE-89). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 108 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.2 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N`)
- **CVSS v4.0 base score:** 8.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-19

## Is CVE-2017-20281 being exploited?

Weaponised exploit code for CVE-2017-20281 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 38 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2017/CVE-2017-20281.md) (trickest)

## Affected products and versions

- **Joomlaboat**: Extra Search

## How to fix CVE-2017-20281

No vendor patch reference has been recorded for CVE-2017-20281 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2017-20281

No threat campaign in the Threadlinqs corpus currently references CVE-2017-20281, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-06-20.

**Exploit and proof of concept**

- [exploit-db.com — exploit](https://www.exploit-db.com/exploits/41663)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/joomla-component-extra-search-sql-injection)

**Issue tracking and product pages**

- [joomlaboat.com — product](http://www.joomlaboat.com/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2017-20281
Full detection coverage and IOCs for threats exploiting CVE-2017-20281 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp