Medium severity · published Oct 4, 2024
CVE-2024-8519
Ultimate Member <= 2.8.6 - Authenticated (Contributor+) Stored Cross-Site Scripting
5.4
CVSS
0.4%
EPSS
No
On KEV
Description
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'um_loggedin' shortcode in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected product
UM
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
ultimatemember
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-8519
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-8519
Product
https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/core/class-shortcodes.php#L433
Patch
https://github.com/ultimatemember/ultimatemember/pull/1545
Patch
https://plugins.trac.wordpress.org/changeset/3160947/ultimate-member/tags/2.8.7/includes/core/class-shortcodes.php
Product
https://wordpress.org/plugins/ultimate-member/
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/9e394bb2-d505-4bf1-b672-fea3504bf936?source=cve
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