Newsletters <= 4.18.1 - Authenticated (Subscriber+) SQL Injection via 'id' Parameter
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The Newsletters plugin for WordPress is affected, and its SQL injection flaw lets an attacker with low-level (subscriber) access run additional database queries to read sensitive information stored in the site's database. Because the required access can be obtained by anyone who subscribes through the public newsletter form, the practical risk extends beyond logged-in WordPress users.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
The Newsletters plugin for WordPress is vulnerable to time-based SQL Injection via the 'id' parameter in all versions up to, and including, 4.18.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. An attacker can obtain the required nonce and subscriberauth cookie without a WordPress account by simply subscribing through the public newsletter form and opening the management link sent via email; the ownership check verifies only the subscriber_id field and does not validate that the injected id parameter belongs to the authenticated subscriber.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- contrid Newsletters
through 4.18.1
References 6
plugins.trac.wordpress.org
- browser/newsletters-lite/tags/4.18.1/models/subscriber.php#L1294
- browser/newsletters-lite/tags/4.18.1/wp-mailinglist-plugin.php#L5076
- browser/newsletters-lite/tags/4.18.1/includes/checkinit.php#L269
- browser/newsletters-lite/tags/4.18.1/wp-mailinglist-plugin.php#L5008
- changeset/3756587/newsletters-lite/trunk/wp-mailinglist-plugin.php