PT-2024-17254 · WordPress · Wp Mailster

Peter Thaleikis · Published 2024-12-03 · Updated 2024-12-03 · CVE-2024-11782

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions WP Mailster plugin for WordPress versions up to, and including, 1.8.17.0

Description The issue is related to stored cross-site scripting due to insufficient input sanitization and output escaping on user-supplied attributes in the mst subscribe shortcode. This allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Recommendations For WP Mailster plugin for WordPress versions up to, and including, 1.8.17.0, update to a version higher than 1.8.17.0 to resolve the issue. As a temporary workaround, consider restricting access to the mst subscribe shortcode to minimize the risk of exploitation. Additionally, restrict contributor-level access and above to prevent authenticated attackers from injecting arbitrary web scripts.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-11782

Affected Products

Wp Mailster

References · 9

• https://plugins.trac.wordpress.org/changeset/3198497/wp-mailster/trunk/mailster/subscr/SubscriberPlugin.php · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-11782 · Security Note
• https://osv.dev/vulnerability/CVE-2024-11782 · Vendor Advisory
• https://t.me/cvenotify/102881 · Telegram Post
• https://t.me/cvedetector/11876 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/909beed4-06a9-4ec4-bf00-4072a38af82b?source=cve · Note
• https://plugins.trac.wordpress.org/browser/wp-mailster/tags/1.8.17.0/mailster/subscr/SubscriberPlugin.php#L216 · Note
• https://twitter.com/VulmonFeeds/status/1864000798939582521 · Twitter Post
• https://twitter.com/CVEnew/status/1863883483460067744 · Twitter Post