Strategic Overview
- Status
- Patched in 3.8.4
- Affected Plugin
- Sliced Invoices – WordPress Invoice Plugin
- Affected Version
< 3.8.4- CVSS
- 7.5High
- Weakness type
- CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
- CVE
CVE-2020-20625
At a glance
CVE-2020-20625 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Sliced Invoices WordPress plugin, affecting versions < 3.8.4. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 3.8.4; sites on affected versions should update now. Disclosed October 2019, reported by Jerome Bruandet.
Vulnerability Overview
Sliced Invoices plugin for WordPress 3.8.3 and earlier allows unauthenticated information disclosure and authenticated SQL injection via core/class-sliced.php.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Reaching this weakness in Sliced Invoices < 3.8.4 takes any authenticated account. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.
A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Sliced Invoices the fix is 3.8.4: builds < 3.8.4 are affected, anything from 3.8.4 onward is not.
Remediation
Update to version 3.8.4, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Sliced Invoices: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Sliced Invoices 3.8.4 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Sliced Invoices – WordPress Invoice Plugin
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C