CVE-2024-8757: WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars · SQL Injection
Affects WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom AvatarsSource CVE Database V5
Not known to be exploited · CVSS 7.2 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| afthemes WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars | Affected
| Fixed in– |
AI-suggested
Until an official fix is released, restrict Administrator-level access to trusted users only and monitor for suspicious activity related to the linked_user_id parameter. Avoid using vulnerable plugin versions and consider disabling the plugin if possible.
Description
The WP Post Author – Boost Your Blog's Engagement with Author Box, Social Links, Co-Authors, Guest Authors, Post Rating System, and Custom User Registration Form Builder plugin for WordPress is vulnerable to time-based SQL Injection via the linked_user_id parameter in all versions up to, and including, 3.8.1 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 Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
References
- wordfence.com/threat-intel/vulnerabilities/id/d667bafc-5f19-4889-a988-236df050c013?source=cve (opens in a new tab)
- github.com/GumGumZz/wordpress/blob/main/wp-post-author.md (opens in a new tab)
- plugins.trac.wordpress.org/browser/wp-post-author/trunk/includes/multi-authors/wpa-multi-authors.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3166002/wp-post-author/trunk/includes/multi-authors/wpa-multi-authors.php (opens in a new tab)