Strategic Overview
- Status
- Patched in 2.0.9
- Affected Plugin
- Double Opt-In for Download
- Affected Version
< 2.0.9- CVSS
- 9.8Critical
- Weakness type
- CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
- CVE
CVE-2015-7517
At a glance
CVE-2015-7517 is a critical-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Double Opt-In for Download WordPress plugin, affecting versions < 2.0.9. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 2.0.9; sites on affected versions should update now. Disclosed November 2015, reported by Larry W. Cashdollar.
Vulnerability Overview
Multiple SQL injection vulnerabilities in the Double Opt-In for Download plugin before 2.0.9 for WordPress allow remote attackers to execute arbitrary SQL commands via the ver parameter to (1) class-doifd-download.php or (2) class-doifd-landing-page.php in public/includes/.
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, integrity, availability — full site compromise territory.
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Reaching this weakness in Double Opt-In for Download < 2.0.9 takes a caller who can reach the endpoint. 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 Double Opt-In for Download the fix is 2.0.9: builds < 2.0.9 are affected, anything from 2.0.9 onward is not.
Remediation
Update to version 2.0.9, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Double Opt-In for Download: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Double Opt-In for Download 2.0.9 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
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