CVE-2024-1769: JM Twitter Cards Information Disclosure Flaw

CVE-2024-1769 Overview

The JM Twitter Cards plugin for WordPress contains an information exposure vulnerability affecting all versions up to and including 14. The flaw allows unauthenticated attackers to view password-protected post content by inspecting the page source. The plugin renders protected post content inside the Twitter Card meta description tag without honoring WordPress password protection. This exposes content that site administrators intended to restrict to authorized readers only. The issue is tracked under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.

Critical Impact
Unauthenticated remote attackers can read password-protected WordPress post content by viewing HTML source, bypassing intended access controls.

Affected Products

JM Twitter Cards plugin for WordPress, all versions up to and including 14
WordPress sites running the jm-twitter-cards plugin with password-protected posts
Sites relying on WordPress post-password protection for content confidentiality

Discovery Timeline

2024-03-05 - CVE-2024-1769 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-1769

Vulnerability Analysis

The JM Twitter Cards plugin generates Open Graph and Twitter Card meta tags for WordPress posts. To populate the twitter:description and related meta description fields, the plugin reads the raw post content and emits an excerpt into the HTML <head> section. The plugin does not check whether the post is password protected before rendering this excerpt.

WordPress normally suppresses the body of password-protected posts when they are displayed to unauthenticated visitors. The plugin bypasses this control by accessing the post object directly and producing meta content from the underlying post_content field. Any visitor requesting the page URL receives the excerpt inside the HTML source, without needing to submit the post password.

The exposure is limited to the portion of content included in the generated meta description, typically the first several sentences of the post. Attackers do not gain write access, code execution, or authentication credentials.

Root Cause

The root cause is missing authorization logic in the meta tag generation routine. The plugin fails to call the WordPress post_password_required() check before emitting excerpt data. This is a classic [CWE-200] information exposure caused by insufficient access control on a secondary data path.

Attack Vector

Exploitation requires only an HTTP GET request to the URL of a password-protected post. The attacker views the returned HTML source and reads the plaintext excerpt embedded in the meta description tag. No authentication, user interaction, or elevated privileges are required. The attack is repeatable against every protected post on a vulnerable site.

No public proof-of-concept exploit and no CISA Known Exploited Vulnerabilities listing exist for this issue. The EPSS score is 0.611% as of 2026-09-08. See the Wordfence Vulnerability Report for additional technical detail.

Detection Methods for CVE-2024-1769

Indicators of Compromise

Presence of the jm-twitter-cards plugin directory at version 14 or earlier under wp-content/plugins/
HTML source of password-protected posts containing <meta name="twitter:description"> or <meta property="og:description"> tags populated with post excerpt text
Web server access logs showing repeated unauthenticated GET requests to URLs of known password-protected posts

Detection Strategies

Enumerate installed WordPress plugins and flag any jm-twitter-cards installation with a version string of 14 or lower using the plugin readme.txtStable tag field
Fetch each password-protected post URL as an unauthenticated client and inspect returned meta tags for content matching the underlying post_content
Compare the excerpt exposed in meta tags against the protected content stored in the wp_posts table to confirm leakage

Monitoring Recommendations

Alert on outbound scraping patterns targeting URLs that map to password-protected posts
Review WordPress plugin inventory during routine vulnerability scans and correlate against the WordPress plugin repository for version status
Integrate WordPress access logs into a centralized log platform and build detections for anomalous access to restricted post slugs

How to Mitigate CVE-2024-1769

Immediate Actions Required

Update the JM Twitter Cards plugin to a version later than 14 that includes the fix from the WordPress Plugin Changeset
Audit all password-protected posts to determine whether their excerpts have already been exposed publicly
Rotate any secrets, links, or sensitive data that may have appeared in the first paragraph of protected posts

Patch Information

The vendor addressed the issue in the commit tracked as changeset 3044066 in the WordPress plugin repository. The fix adds a password-protection check before rendering excerpt data into Twitter Card meta tags. Administrators should install the latest release from the JM Twitter Cards plugin page.

Workarounds

Deactivate and remove the JM Twitter Cards plugin until it can be updated
Restrict the content of password-protected posts so that the first paragraph contains no sensitive information
Use a web application firewall rule to strip twitter:description and og:description meta tags from responses for URLs matching password-protected post slugs

bash

# Identify vulnerable installations across managed WordPress hosts
find /var/www -type f -path '*/plugins/jm-twitter-cards/readme.txt' \
  -exec grep -H '^Stable tag:' {} \;

# Force update via WP-CLI once a fixed release is available
wp plugin update jm-twitter-cards --path=/var/www/html