Related Posts for WordPress <= 3.0.0 — Missing Authorization to Authenticated (Contributor+) Sensitive Information Exposure via 'rp4wp_create_link' Parameter
CVE-2026-109979Published · Updated Action summary
Affected: ≤3.0.0Update to 3.0.1 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:LConfidentiality- Low
I:NIntegrity- None
A:NAvailability- None
- Weakness
- CWE-862 Missing Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- 0.3% chance in 30 days22th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
Related Posts for WordPress related-posts-for-wp
- Affected≤ 3.0.0
- Patched in3.0.1
Update to 3.0.1 or newer.
You are affected if you run ≤ 3.0.0. Version 3.0.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Related Posts for WordPress.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 3.0.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Related Posts for WordPress to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Wordfence PRISM.
The Related Posts for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 3.0.0 via the 'rp4wp_create_link' parameter of the hidden 'rp4wp_link_related' admin page. The handle_create_link() handler verifies the nonce and that the current user can edit the parent post, but never checks that the attacker-supplied child post ID is one the user is allowed to read; LinkRepository::insert() stores the arbitrary child ID without validation, and ManageLinks::render() later calls LinkRepository::get_children() in its no-extra-args fast path, which falls through to array_map('get_post', $child_ids) — bypassing read_private_posts/read_post capability checks — and then echoes esc_html($child->post_title) in the parent's editor meta box. This makes it possible for authenticated attackers, with Contributor-level access and above, to read the titles of arbitrary non-public posts (drafts, pending, private, future, trashed) authored by higher-privileged users by linking those post IDs to a draft they own and then reading the resulting meta box.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Related Posts for WordPress
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Missing Authorization to Authenticated (Contributor+) Sensitive Information Exposure via 'rp4wp_view' Parameter ≤3.0.0Update to 3.0.1 | CVE-2026-109980 | |
| Medium5.4 | Cross-Site Request Forgery ≤2.2.1Update to 2.2.2 | CVE-2024-0592 | |
| Medium5.5 | Authenticated (Administrator+) Stored Cross-Site Scripting ≤2.1.2Update to 2.1.3 | CVE-2022-3506 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤2.1.1Update to 2.1.2 | — | |
| Medium5.5 | Stored Cross-Site Scripting ≤2.0.4Update to 2.0.5 | CVE-2021-24482 |
- Medium4.3Missing Authorization to Authenticated (Contributor+) Sensitive Information Exposure via 'rp4wp_view' Parameter
≤3.0.0Update to 3.0.1
- Medium5.4Cross-Site Request Forgery
≤2.2.1Update to 2.2.2
- Medium5.5Authenticated (Administrator+) Stored Cross-Site Scripting
≤2.1.2Update to 2.1.3
- Medium6.1Reflected Cross-Site Scripting
≤2.1.1Update to 2.1.2
- Medium5.5Stored Cross-Site Scripting
≤2.0.4Update to 2.0.5
Same weakness (Missing Authorization)
All Missing Authorization| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 4.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.